You're right sjm. Golf was already booming when Tiger arrived. And yes, the boom started with Arnold. Johnnyt
Arnold Palmer just happened to be the reigning champ when TV execs decided to broadcast golf matches.
TV made Arnold Palmer (and golf in general), just like the movie The Hustler made Minnesota Fats (Rudolph Wunderone).
Sure, Palmer was perfect for the role: a friendly, articulate "everyman" and exciting to watch. But golfers before him were friendly, articulate and exciting to watch. He was just there at the right time.