King of the Hill

Season 2, Episode 14

Episode Title: I Remember Mono

Air Date: 1998-02-08

Overview:

On Valentine's Day, Peggy finds out that Hank lied to her when they were dating: he told her he was at home one week with a football injury, when he actually got mono from kissing another girl. She sets out to uncover the whole truth, and finds herself face to face with the past.