Hi, thank you for your answer, my problem is this:
I have a DTT modulator with HDMI input, it work fine with 1920X1080 but ho work with 1440X900 input.
I have saw in the DVR menu 1920X1080 output video, it is selectable, (and selected) but the signal out recognized to the TV and also the DTT Modulator it is 1440X900,
In attach the example... and with 1440X900 on the TV appair Service not avalaible. In fact, if I tune the tv vith the modulator without signal input, the tv recongize the channel (my LCN 777) with the station name (DVR HD), but if tune the TV with same situation but with HDMI connected to 1440X900, the TV don't recognize the channel and don't save nothing in the list.
I hope in your help !!