I was 12 and already a HUGE Star Trek fan. I remember both eagerly looking forward to each Saturday because TAS was on but also dreading it because it was the day I had to help my dad do the yard work . . . which was ALWAYS during TAS. I can remember sneaking into the house to watch it. Finally my mom intervened (she knew how dedicated I was to Star Trek because she saw me watching TOS everyday and keeping detailed notes on all of the sets and props) and let my dad know that he needed to give me a break during that 30 mins. If I remember correctly I think it came on from 11:00 to 11:30 AM
Boy, those were great, fun days.