I loved Shazam! growing up. Never forgot when they showed the 'flying' effect on a special: they had Captain Marvel rigged on the front of a moving truck, his upper body hanging over the edge of a board. A little close crop, and Shazam! Instant low-level flying.
And who can forget the great Space : 1999?
See, effects were so bad that we still had to use our imaginations, even though we were watching TV.I'll spare you the Buck Rogers, Land of the Lost, SpiderMan, and Flash intros.