All of the non- Public Safety talk groups are only available on the analog system. Most (if not all) of the P25 Public Safety talk groups are cross broadcast on the analog system as well. I haven't heard all of the talk groups of course, but even today listening to my TRX-1 next to my Unication G5, every P25 broadcast was also heard on the analog system unless the TRX-1 was receiving one of the analog only talk groups. I don't know how long this will be the case, but being the analog system was not that old when the P25 system went live, I'm thinking it will be around for quite a while.