I have heard that you can watch TV on the 7710.

Does anyone know how to do this??:

As far as I know, it is a service, you can watch TV if your I guess phone operator is supplying it. Search the google, and you'll find where you can watch tv with 7710, it was in London I think and as a test broadcast.

First of all, you need the DVB-H (streamer) module for the phone. It is not for sale in general but through DVB-H broadcast trials. (Without that you can only do video streaming over GPRS/EDGE as with almost any other phone.).

Next you need to find a DVB-H broadcast network operator. They're in trials, too, not production yet.

Read more on http://www.nokia.com/mobiletv