Thank you very much Prog, I tried and it works fine.
Things seem to be more easy of what I thought

And thank you very much for the nice and poverfull Progdvb 4.88 pro It has a really fast swicthing channel system.

)
I also tried building a h.264 graph using a record from original Twinhan PCTV from the recording of channel HDswisse that is in hd 720p 50hz but the graphedit wasn't able to construct a graph.
Perhaps I recorderded only some second something like 18 MB of recording and it was too little for building A graph.
In any way I try later doing a transcode in h.264 of another record and then usig the graph if it work.
Thank you again.
Opteron 175 @ 2,2 Ghz (on gigabyte nforce3 Ultra), Radeon HD 3850 512 MB, Digitalrise 1041+CI, Th 1.1.0.4 driver, 1 GB RAM, Windows XP Pro