Jimmy and Scott grew up in the same Brooklyn neighborhood. Although he was a year and a half younger, Jimmy entered show business first, in Joe and Sons (1975-76), a short-lived sitcom about an Italian-American family.
While Scott was playing a preteen gangster with a lascivious girlfriend in Bugsy Malone (1976), Jimmy was buddy-bonding. In The Bad News Bears in Breaking Training (1977), former Little League superstar Kelly Leak (Jackie Earle Haley) decides to rejoin the team and reconcile with his father, the coach. He brings a friend from New York, Carmen Ronzonni (Jimmy), who is called both racist and anti-gay slurs by his belligerent teammates, marking the pubescent relationship as potentially gay. To assuage them, Carmen buys some Playboy magazines to pass around, but significantly doesn't read them himself.
In the fall of 1977, both cousins landed tv series. Scott was brought aboard Happy Days, to draw a teen demographic to the rapidly aging cast.
Jimmy leaped head-first into a firestorm of controversy on the soap opera spoof Soap. Even before the first episode aired, it was receiving vociferous protests from religious groups, gay rights activists, tv watchdogs, and even the National Football League.
People calmed down a little (not much) when they discovered that the program was simply a parodic exaggeration of the themes soap operas had been displaying for years, usually involving falling in love with the "wrong" person:
Your tennis coach (when you are married to someone else)
Your priest
The escaped convict who is holding you hostage
A woman (when you are gay)
Someone of another race