Joanie Loves Food Stamps
The money flow from those days was crazy. I vaguely remember the David Cassidy case where, in those days, the network/production owned all the license revenue.
Basically if things were then as they are now, he would have made a hundred million, but he has to tour little casinos.
There is a huge difference, not unlike sports, in how the money is paid out. Though the record industry is still a disaster area in that regard.