It's All Relative - Season 1 Episode 16 Cross My Heart
Overview: When a TV show plans to air a "Where Are They Now?" special, the O'Neils discover that Simon used to be a member of an 80s one-hit-wonder boy band. Mace, desperate to become president of the local merchants association, promises that he can reunite the band for the Valentine's Day Winter Carnival. As Mace and Simon are consumed with the band's reunion, Audrey and Philip's Valentine's Day hopes are cast aside. And Bobby panics when he can't come up with an original plan for a special Valentine's Day with Liz.