<P> The show had been sold to the network using the pitch "hip parents, square kids ." Originally, Elyse and Steven were intended to be the main characters . However, the audience reacted so positively to Alex during the taping of the fourth episode that he became the focus on the show . Fox had received the role after Matthew Broderick turned it down . </P> <P> Supporting cast and characters includes neighbor Irwin "Skippy" Handelman (Marc Price); Mallory's Sylvester Stallone-esque boyfriend artist Nick Moore (Scott Valentine); and Alex's feminist artist girlfriend Ellen Reed (Tracy Pollan, whom Michael J. Fox later married in 1988). In season 3, episode 17, Elyse gave birth to her fourth child, Andrew (who was played by Brian Bonsall from season 5 onward). Garrett Merriman played baby Andrew . </P> <P> The theme song, "Without Us" (credited in Season One as "Us"), was composed by Jeff Barry and Tom Scott in 1982 . During the first season, it was originally performed by Dennis Tufano and Mindy Sterling . For the rest of the show's run, the song was performed by Deniece Williams and Johnny Mathis . </P> <P> During its final two seasons, Family Ties was scheduled on Sunday nights often followed by Day by Day, another series from Ubu Productions . Michael Gross and Brian Bonsall brought their respective roles of Steven and Andy Keaton to the Day by Day episode "Trading Places", which reveals that Steven went to college with Brian Harper (Doug Sheehan). </P>

Who sang the theme song to family ties
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