YSK if you've seen something traumatic, playing Tetris for a couple of hours afterwards can drastically reduce the chance of it becoming a deeprooted memory and causing PTSD

Here come my suggestions, I find them funny and most have a feelgood undertone too: Parks and Recreation, My Name is Earl, Raising Hope (same writers as in my name is earl), Better off Ted, Schitts Creek, Chuck, Space Force, Brooklyn Nine-nine, Outsourced, Modern Family, The Middle, Community (the earlier seasons). Most of these are pretty well known I guess but I hope at least one of them is helpful!