What I find infuriating is that they will show, say season 5 and season 9 of mythbusters simultaneously on a channel like Discovery family. Then when those seasons end, they restart them again and my season recording records the beginning episodes again that I have seen already and deleted. Then there is no warning when old repeat seasons are beginning at Episode 1. You have to surf through pages of TV guide every day to spot them. They never advertise old seasons starting from Episode 1 but we must watch endless infuriating promo's twenty times a day for a new show starting in like a month's time. Anyway, why not show season 1 and 2 and then 3 and 4 and then 5 and 6 and then 7 and 8 in pairs if you must and then stagger the repeats of seasons properly? It makes no sense.
They also repeat random seasons of popular shows like SNL when the live "up to date" seasons are on a break. This is maddening as I have no idea what the date of the airing is and what season is the "latest" season. I end up recording old seasons that I have seen already. Give us some indication of when the original airing happened? (If they do, I missed it, forgive me).