This My Name is Earl screencap contains
boater, leghorn, panama, panama sumbrero, mandaragat, espumadera, dayami sumbrero, Fedora, nadama sumbrero, Homburg, Stetson, and trilby.
There might also be
porkpie, porkpie sumbrero, hat campaign, dress sumbrero, mataas na sumbrero, opera sumbrero, sutla sumbrero, pausukan, trumpo, trumpo, and beaver.