A few configuration questions

I have been using Roomie for a few months and I would like to make some adjustments. My setup:

 

Room 1:

Yamaha HTR-8063 (Zone 1)

Scientific Atlanta PVR 8300 (HD)

Apple TV 2nd Gen used as an airplay device from iTunes

Sony TV

Room 2:

Zone 2 of Room 1 Yamaha

Scientific Atlanta (SD)

old sony CRT TV

itach IP2IR

Questions:

Is it possible to have diffeent guides for different Scientific Atlanda devices? The channels for SD and HD are different and I currently have all channels on both devices;

Is it possible to remove the genius and mix playlist from the "iTunes guide"? They do not appear on my iTunes playlist and they clutter my roomie guide;

Roomie accesses my Yamaha from IP. I am considering buying a iTachIP2Serial device. What would be the advantages other than having my 2 iphones and 2 ipads access it? Will it work on my HTR-8063? This model is not listed on the serial compatibility list (it is serial enabled)

Thanks

The selected channels for a given provider will be the same across devices. Genius will always be listed as an item. Apparently that receiver model is a Canadian RXA-1000 so that should work fine via serial.

Thanks for the quick reply.

Will I gain somethig by going serial instead of IP?

Multiple connection support is the primary benefit of going serial over IP with that model.