Yeah, I think most episodes of The Simpsons, Family Guy etc. Air the same time every week, so setting up a weekly alarm would be a solution. If you download the data for today, and the data for day 7, and compare to see if the show indeed air at the same time might be a solution? Of course you have to choose that this TV-show airs the same time every week, so it doesn't always download the day 7 data(when you just want one reminder).