My favorite TV couples are:
Chuck and Blair [Gossip Girl] <33
Serena and Carter [Gossip Girl];
Adrianna and Navid [90210];
Liam and Naomi [90210];
Jack and Kate [Lost];
Charlie and Claire [Lost];
Seth and Summer [The OC];
Carrie and Big [Sex and the City]
Gaby and Carlos [Desperate Housewives]
...
(maybe I'm forgetting someone *ponders* Hmmm...)

Mine are:

Brooke & Lucas {OTH}
Sawyer & Kate {Lost}
Casey & Cappie {Greek}
Jake & Peyton {OTH}
Nathan & Haley {OTH}
Navid & Adrianna {90210}
Serena & Nate {GG}
Chuck & Blair {GG}
Nate & Blair {GG}
Logan & Veronica {Veronica Mars}
Pacey & Joey {Dawson's Creek}
Dawson & Jen {Dawson's Creek}
Tony & Kate {NCIS}
McGee & Abby {NCIS}
Charlie & Claire {Lost}
Desmond & Penny {Lost}
Booth & Brennan {Bones}
Angela & Hodgins {Bones}
Chloe & Clark {Smallville}
Jason & Lana {Smallville}
Clark & Lana {Smallville}
Eric & Sookie {True Blood}

I'm probably forgetting some too.

Chuck & Blair - Gossip Girl
Nate & Serena - Gossip Girl
Nate & Jenny - Gossip Girl
Serena & Carter - Gossip Girl
Nathan & Haley - OTH
Brooke & Julian - OTH
Brooke & Lucas - OTH
Lucas & Peyton - OTH
Lucas & Haley - OTH
Jake & Peyton - OTH
Sid & Cassie - Skins
Freddie & Effy - Skins
Annie & Ethan - 90210
Adrianna & Navid - 90210
David & Ella - Melrose Place (2009)
Stefan & Elena - The Vampire Diaries
Damon & Caroline - The Vampire Dairies
Logan & Veronica - Veronica Mars
Billy & Sookie - True Blood
Eric & Sookie - True Blood
Jessica & Hoyt - True Blood
Trish & Henry - Harper's Island
Cal & Chloe - Harper's Island

+ WAY more. But those are the main ones. Plus, it would take me FOREVER just to name ALL OF THEM.

Brooke&Lucas - OTH
Nathan&Haley -OTH
Chuck&Blair - GG
Serena&Dan - GG
Summer&Seth OC
Ryan&Marissa - OC
Sid&Cassie - SKINS
Tony&Maxxie - SKINS

HAHA I DONT WATCH MUCH SHOWS LATELY LOL and thats all i can think of atm... there like my main ones =]

chuck;blair {gossip girl} ♥
jackie;hyde {that 70s show} ♥
alex;izzie {grey's anatomy}
robin;barney {himym}
summer;seth {the oc}
brooke;julian {one tree hill}
eric;sookie {true blood}
nathan;haley {one tree hill}
clark;lois {smallville}
serena;nate {gossip girl}
clay;quinn {one tree hill}
ross;rachel {friends}
monica;chandler {friends}
owen;cristina {grey's anatomy}
marshall;lily {himym}
susan;mike {desperate housewives}
rory;jess {gilmore girls}
luke;lorelai {gilmore girls}

Tony & Ziva [NCIS]
McGee & Abby [NCIS]
Cal & Gillian [Lie to Me]
Booth & Brennan [Bones]
Peter & Olivia [Fringe]
Danny & Lindsay [CSI:NY]
Stella & Mac [CSI:NY]
Jim & Pam [The Office]
House & Cuddy [House]
Niles & Daphne [Frasier]
Piper & Leo [Charmed]
Fred & Wesley [Angel]
Xander & Anya [BtVS]
Willow & Tara [BtVS]
Pacey & Joey [Dawson's Creek]
Clay & Quinn [OTH]
Donna & Josh [The West Wing]
Angela & Hodgins [Bones]
Steve & Miranda [Sex and the City]
Charlotte & Harry [Sex and the City]
Angel & Cordelia [Angel]
Buffy & Spike [BtVS]
Hotch & Emily [Criminal Minds]
Penny & Sheldon [The Big Bang Theory]
Emma & Will [Glee]
Castle & Beckett [Castle]

Some of mine;;

Duncan/Veronica - {VMars}
Piz/Veronica - {VMars}
Dan/Serena - {GG}
Chuck/Blair - {GG}
Nate/Vanessa - {GG}
Nick/Lindsay - {F&G}
Ross/Rachel - {FRIENDS}
Chandler/Monica - {FRIENDS}
Hoyt/Jessica - {TB}
Bill/Sookie - {TB}
Terry/Arlene - {TB}
Sam/Tara - {TB}
Dexter/Rita - {DEXTER}
Max/Tara - {USOT}
Bill/Barb/Nicki/Margene - {BIG LOVE}
Jonathan/Stella - {BORED TO DEATH}

I think that's all... Hmmm... If you like some of the random couples I like at the end, feel free to add me. :)

Clark and Lois (Smallville)
Lucas and Peyton(One Tree Hill)
Chuck and Blair (Gossip Girl)
Jenny and Nate (Gossip Girl)
Davis and Chloe (Smallville)
Clark and Lana (Smallville)
Brooke and Julian (One Tree Hill)
Rory and Jess and Logan (Gilmore Girls)
and many more

jack&kate{lost}
jake&peyton{one tree hill}
seth&summer {the oc}
monica&chandler{friends}
ross&rachel{friends}
nathan&haley{one tree hill}

alex&izzie{grey's anatomy}
meredith&derek{grey's anatomy}
cristins&owen{grey's anatomy}
mark&lexie{grey's anatomy}
callie&arizona{grey's anatmy}
ryan&taylor{the oc}
charlie&claire{lost}
desmond&penny{lost}
emma&will{glee}
sid&cassie{skins}
dan&serena{gossip girl}
phoebe and mike{friends}
susan&mike{desperate housviwes}
clay&sara{one tree hill}
brooke&julian{one tree hill}
and more...

Serena&Nate{Gossip Girl}
Piper&Leo{Charmed}
Navid&Adrianna{90210}
Seth&Summer{The OC}
Liam&Annie{90210}
Cleo&Lewis{H2O}
Phoebe&Cole{Charmed}
Chuck&Blair{Gossip Girl}
Dan&Vanessa{Gossip Girl}
Rikki&Zane{H2O}
Silver&Dixon{90210}
Prue&Andy{Charmed}

and then there are tons of couples that i like and i guess i don't have anything against xD

Lucas & Peyton (OTH)
Sawyer & Kate (Lost)
Dan & Blair (GG)
Jess & Rory (Gilmore Girls)
Damon & Elena (TVD)
Sookie & Eric (True Blood)
Tyler & caroline (TVD)
Seth & Summer (The OC)
Veronica & Logan (Veronica Mars)
Buffy & Angel (BTVS)
Michael & Nikita (Nikita)
Neal & Sara (White Collar)
Booth & Brennan (Bones)

.......

Mine are these:

Hyde & Jackie (That 70s Show)
Damon & Elena (TVD)
Stefan & Katherine (TVD)
Caroline & Klaus (TVD)
Caroline & Stefan (TVD)
Elijah & Katherine (TVD)
Toby & Spencer (Pretty Little Liars)
Hanna & Caleb (Pretty Little Liars)
Puck & Rachel (Glee)
Sam & Quinn (Glee)
Santana & Brittany (Glee)
Kurt & Blaine (Glee)
Jake & Cassie (TSC)
Adam & Diana (TSC)
Snow & Charming (OUAT)
Belle & Rumplestilskin (OUAT)

-Silver/Dixon {90210}
-Liam/Naomi {90210}
-Brenda/Dylan {Beverly Hills, 90210}
-Valerie/David {Beverly Hills, 90210}
-Clare/Steve {Beverly Hills, 90210}
-Cordelia/Xander {Buffy, the Vampire Slayer}
-Phoebe/Cole {Charmed}
-Prue/Andy {Charmed}
-Monica/Chandler {Friends}
-Barney/Robin {How I Met Your Mother}
-Kate/Sawyer {Lost}
-Desmond/Penny {Lost}
-Claire/Charlie {Lost}
-Sayid/Shannon {Lost}
-Juliet/Sawyer {Lost}
-Nathan/Haley {One Tree Hill}
-Peyton/Jake {One Tree Hill}
-Brooke/Julian {One Tree Hill}
-Clay/Quinn {One Tree Hill}
-Brian/Justin {Queer as Folk}
-Sabrina/Harvey {Sabrina, the Teenage Witch}
-J.D/Elliot {Scrubs}
-Cox/Jordan {Scrubs}
-Fran/Maxwell {The Nanny}
-CC/Niles {The Nanny}
-Seth/Summer {The O.C}
-Ryan/Marissa {The O.C}

* Sheldon & Amy (The Big Bang Theory) (OTP ^^)
* Leonard & Penny (The Big Bang Theory)
* Howard & Bernadette (The Big Bang Theory)
* Jim & Pam (The Office (US))
* Andy & Erin (The Office (US))
* Michael & Holly (The Office (US))
* Dwight & Angela (The Office (US))
* Tim & Dawn (The Office (UK))
* Ross & Rachel (Friends)
* Chandler & Monica (Friends)
* Mike & Phoebe (Friends)
* Chris & Reagan (Up All Night)
* Charlie & Claire (Lost)
* Sawyer & Juliet (Lost)
* Jack & Kate (Lost)
* Hurley & Libby (Lost)
* Jin & Sun (Lost)
* Dean & Jo (Supernatural)
* Castiel & Meg (Supernatural) XD
* Dexter & Rita (Dexter)
* Oz & Willow (Buffy the Vampire Slayer)
* Xander & Cordelia (Buffy the Vampire Slayer)
* Spike & Buffy (Buffy the Vampire Slayer)

That's about it XD, I don't watch that many shows, but I love a lot of couples XD I know the Supernatural ones are not really canon, but they kissed at least :D

ross/rachel
lucas/peyton
castle/beckett
derek/meredith
barney/robin
neal/sara
snow/charming
finn/rachel
steve/miranda
monica/chandler
alex/izzie
carrie/aidan
will/emma
graham/emma
cristina/owen
callie/arizona
dan/serena
nathan/haley
brooke/julian
phoebe/mike
marshall/lily
jules/grayson
quinn/puck
rumple/belle
jackson/april

Monica & Chandler (friends)
Mark & Lexie (ga)
Piper & Leo (charmed)
Ross & Rachel (friends)
Callie & Arizona (ga)
Leonard & Penny (tbbt)
Peyton & Lucas (oth)
Mike & Phoebe (friends)
Meredith & Derek (ga)

Superman & Lois - Superman TAS
Dick & Barbabra - Batman TAS
Red Arrow & Cheshire - Young Justice
Robin & Zatanna - Young Justice
Shayera & John Stewart - Justice League
Batman & Wonder Woman - Justice League
Harley Quinn and The Joker - Batman TAS
Artemis & Wally - Young Justice
Huntress & Question - Justice League
Green Arrow & Black Canary - Justice League