Note: This show is actually uncensored, which means every episode is rated TV-MA-L. But these ratings are for if it was censored, which means I'm not counting explicit profanity.
1. The Bleedin' in Sweden - TV-14-LS - An S for Frank and Sue having sex.
2. Saturday Bloody Saturday - TV-14-LV
3. The Trough - TV-14-L
4. F is for Halloween - TV-14-L
5. Bill Murphy's Day Off - TV-14-DLS - A D for the "lick my pickle" song.
6. O Holy Moly Night - TV-14-DLS - A D for the newscaster saying "I'll blow a horse."