I was quite surprised to find that this is quite a different animal than the 508 DVR receiver. I thought I would be fine redoing my cables to the main TV. I had four cables going to the main TV. Two were for my two sat receivers (508 & 811) and the other two cables were for OTA antenna and Comcast cable. I was planning to get the 921 when it came out, but since no one still has the 921, I decided to get this deal on the 721 instead, except when I wanted to replace the 508 receiver with the 721 I still needed another sat feed. The easiest thing for me was to get a pair of sat diplexers and combine the cable feed with another sat. output from the SW-64 switch.
The 721 didn't like the "check switch test" on the input 2 w/ had the diplexers so I had to remove the short RG59 cable I had after the diplexer and replace it with a RG6 cable. The "Check switch test" still didn't work (or match) but it was closer since I getting only the odd transponders, so I tried switching the cables on the SAT 1 and SAT 2 on the inputs of the 721. While doing a third "check switch test" I lit a couple of candles and prayed to the satellite gods that it would work this time.
IT WORKED! Both sat. inputs could finally see all three sat. locations.
I really like to able to buffer and pause the other tuner while watching the other tuner. I wish I could have the opition to have no TV screen on the PVR menu. I will often come home to watch my favorite baseball team and like be able to watch it from the beginning and speed then through and catch up to live. With the TV on the DVR menu I now have to make sure I mute the TV and not look at the small square with the live game on.
Other than the picture frezzing when using the 30 second skip button sometimes and pressing the channel up or stop while in the buffer and losing everything up till then I'm fairly happy with it. I do wish it could change the channel faster. It's pretty slow when changing channels, slower than my old 4000. Is the 921 this slow too.
Does anybody know how to do a search of the baseball games on the ESPN/FSN alt. channels? Ever since they show who's playing on the title, there's no way to do a search anymore. I also wished the remote would know my TV input code on my Philips Cineos TV. It seems none of the DISH remotes have this code or any of the codes for my Denon A/V receiver. Looks like I need to buy on those learning remotes. The Denon LCD remote is a learning remote, but it's way too clumbersome.