King of the Hill - Season 2 - Eps 14: I Remember Mono
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.
About King of the Hill

Title: King of the Hill
First Air Date: 1997-01-12
Last Air Date: 2009-09-13
Status: Canceled
Rating: 7.334/10 (from 589 votes)
Language: EN
Seasons: 14
Total Episodes: 255
Network: FOX
Genres: Animation, Comedy, Family
Production Companies: 20th Century Fox Television, Deedle-Dee Productions, Judgemental Films, 3 Arts Entertainment
Synopsis
Set in Texas, this animated series follows the life of propane salesman Hank Hill, who lives with his overly confident substitute Spanish teacher wife Peggy, wannabe comedian son Bobby, and naive niece Luanne. Hank has conservative views about God, family, and country, but his values and ethics are often challenged by the situations he, his family, and his beer-drinking neighbors/buddies find themselves in.
Cast

Mike Judge
Hank Hill / Boomhauer (voice)

Kathy Najimy
Peggy Hill (voice)

Pamela Adlon
Bobby Hill (voice)

Johnny Hardwick
Dale Gribble (voice)

Stephen Root
Bill Dauterive (voice)

Brittany Murphy
Luanne Platter (voice)

Toby Huss
Kahn Souphanousinphone / Cotton Hill (voice)

Lauren Tom
Minh Souphanousinphone / Connie Souphanousinphone (voice)

Ashley Gardner
Nancy Hicks Gribble (voice)