His love for progressive rock began at that moment, causing a rift between Josephs and Arnold about that "awful" music by groups like The Doors, Jefferson Airplane, and 13th Floor Conspiracy.
Arnold and his wife Terry helped pioneer many of the early Philadelphia progressive-rock groups such as The Nazz, American Dream, Stone Dawn, Woody's Truck Stop, Mandrake Memorial, Elizabeth, and The Legions, Stone Dawn, Almond Joy, The Driftwoods, by hosting the first "Be-IN" at Belmont Plateau in Philadelphia's Fairmount Park.
He was involved heavily in promoting and serving as master of ceremonies (MC) for the first Earth Day concert, to which he drove his propane-powered car.
Arnold also rode elephants on TV spots for Allstate Transmissions ("No Matter What You Drive", and climbed to the top of the Benjamin Franklin Bridge to direct and appear in a commercial bringing the new Buicks to South Jersey.
He was also a "tired mummer" in an ad for Lazy Boy Chairs, and built his agency into a nationwide Teen Fashion marketing giant.
In 2001, after encouragement from his son Jody, and with the assistance of Rich Levin and Bob Davis of Soul-Patrol.net and web hosts Netcetra.com, much of his original broadcasts have been updated and made publicly available.
Terry Arnold, under the stage name 'Terryl', recently appeared in films "eBay Disco Ball" and a spoof on "The Price Is Right" as "Goldie Goforit" an enthusiastic contestant.
New movie star Brooklyn Decker played the model, with long-time Hollywood actor Jack English as Bob Barker.
Recently, an ASCAP composition co-written by Terry with Russ Edwards, a long-time Philly folk-rock-country personality, "I Won't Quit Now"..was released on his CD "They Call Them Cowboys."
Both Arnold and Edwards have suffered long-term cognitive damage from auto accidents, and the song is an encouragement to "never quit"..even if you don't make sense to your own self sometimes.