On last night's 30 Rock, Liz's Valentine's Day date with Drew took an odd turn as his dying mom confessed that she's really his grandmother - and his sister is his real mom.

Meanwhile, Jack accompanied Elisa to church and unleashed a confession that caused the priest to call for backup, and Tracy continued trying to set up Ken with a blind chick.

Fitting plot lines for a show that gets screwier and funnier by the week. Follow the link for our full recap of "St. Valentine's Day," then follow the jump to watch the full episode!

[video url="/videos/st-valentines-day-full-episode/" title="St. Valentine's Day: Full Episode"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.