TV CHARACTERS

Ten sets of character names; which TV shows are they from?

#1 Rachel, Ross, Monica, Chandler #2 Tinky-Winky, Dipsy, Laa-Laa, Po #3 Walter, Jesse, Skyler, Hank #4 Eleven, Mike, Dustin, Will #5 David, Gareth, Dawn, Finchy #6 Tony, Carmela, Paulie Walnuts, AJ #7 Fozzie, Waldorf, Animal, Gonzo #8 Marion, Fonzie, Richie, Chachi #9 Sheldon, Leonard, Howard, Raj #10 Eric, Chef, Mr Garrison, Kyle