Welcome to the forums Giovanni.
My solution is very similar. Capture the video and audio via s-video (I have a pvr150). I don't use the dusky solution. I have a usbuirt and I used it to 'learn' my ir controls for a sky plus box in the UK. The usbuirt then relays these commands back to the sky box.
The quality is good and the sky box can be controlled from any orbiter with only a slight lag. This means that any standard lmce remote can be used to control the sky box.
The sky receiver is added as av equipment and appears as a 'live tv' type source under the media menu on every md. I had to add my sky box in the web admin as new av equipment.
Hope this helps.
Barney
Hi Barney, thanks for reply.
I'm happy to know it works. I've some questions:
1) How many seconds pass between the pressing of the button and the channel change?
2) Is this the usbuirt you are referring to?
http://www.usbuirt.com/order.htm Or can I use the Gyration ir receiver?
3) When you say that you use your usbuirt to 'learn' your ir controls, What do you mean exactly? ....sorry, as I said I'm new to linuxmce.
Giovanni