hasole: So is all the SD tv on freeviewhd upsacled to 720p/1080i then?
No TV on freeview Sat is HD
On the UHF/HD platform, all content on TV1 and TV2 is sent out at 720p. They upscale all SD content to this, and any HD content goes straight out at 720p. TV3 is similar, only they upscale to 1080i. Any actual HD content goes out at 1080i without going through the upscaler. Everything else is SD, which includes the new Prime channel too. This is 576(i/p?)
Essentially your TV will be upscaling the SD stuff to it's native resolution anyway, but the commercial quality upscaler does a pretty good job on TV1,TV2 and TV3's programs.