All-New Super Friends Hour Intro 1977

The Super friends first appeared in 1973, and only for one season! They reappeared four years later in 1977. I believe it was originally called "The All-New Super Friends Hour". A few changes were made, most notably the addition of The Wonder Twins, Zan and Jayna and their pet monkey Gleek. This was a step up from Marvin and Wendy and their pet Wonder Dog. The Super Friends really hit their stride with "Challenge Of The Super Friends" in 1978.