Possible upgrade in my future

[FWGMills]

I will be purchasing an HDTV soon and would like to upgrade my Dish service to HD. Here is what I have now...all owned.

721 receiver (Living room)
508 receiver (Master bedroom)
311 receiver (2nd bedroom)
2 Dish500 dishes with legacy dual LNBs (110/119 and 148)
SW-64 w/power inserter running it all.

Now, I would like to replace the 721 with a 622. The other receivers could stay since I will only have one HD television. If I have my 148 dish repointed to 129 can it pick up the HD signals without replacing the LNB? If I do have to replace the LNB, then I'll have to replace the three dual LNBs with DP LNBs and a DP34 or DPP44 switch?

I'm just trying to figure out how much I'm going to bite off if I pull the trigger on this changeover.

Thanks.

 

[r_childress]

If you upgrade the lease route, Dish should do everything necessary to get the HD for you. You would be out the initial 199 for the receiver.