When I setup my 522 to do a Dish Pass to record "Highway to Heaven" last month with Dish Pass where I have it record all shows with that exact title I noticed that it would start one minute early before the marathon and end three minutes late each day. For example: the marathon starts at 8:00 PM but the first show records one minute early at 7:59 PM. The show at 9:00, 10:00, and 11:00 does not start one minute early but the show that is at 11:00 ends three minutes late at 12:03 AM. This reminds me of the other shows that starts one minute early and three minutes late. It must be detecting that the show is airing consecutively and does not want to jeopardize other timers or its own show by starting each show 1 minute early and ending 3 minutes late. The timer is smarter than what I thought they were. I was not sure if anybody else had caught this or not.