Space:1999 (1975 intro)
I remember, when I was 11 years old, watching the ads, probably including this one, on TV in San Antonio and looking forward to it because it I thought it looked exciting and interesting. Then when channel 12 finally started showing it and I finally got a chance to see it, I thought it was excessively cerebral and uninvolving, and, well, boring. Looking at this old "cold open" ad I realize how cheesy and ridiculous it must seem to a modern audience. If it no longer looks exciting and interesting to me I can only imagine how an 11 year old today might regard it.