HD DVRs

FW wrote:
Hi; What do I need to add a 2nd HD DVR to an existing single HD24 receiver?

Thanks

If you are talking about a DirecTV H24 (not a DVR, just single tuner) then that's all you have and that's that. If you want a receiver that will allow you to watch and record 2 different channels at the same time then you need to replace that box or add another (now 2 people can watch 2 different channels on 2 different TV's plus record). With the right antenna you could even update to the DirecTV Genie and watch/record 5 channels simultaneously.