When I had dish 622 and 722 I can also back up your statement.
They never had this issue. I remember Directv having this issue when I used to have service just befor I visited cable for a year with my HR22.
Last night, I set Pawn stars "First Run" and guess what, it never recored the 10 pm only the 10:30 and this time they both had the proper air date..
So some of you guys can claim its not flawed, but I suggest you try viewing some other websites. There are very limited Directv members here.
I agree the 722 and even my old 522s were pretty solid in that regard. I had some other issues but it wasn't related to recordings.