MySKY HD issue

[OneTouch]

I am about to visit a client who's TV is a monitor with a single DVI input, with the tuner etc is in a separate box. They have just obtained a MY Sky HD, so to make the best of the quality I will need to supply a HDMI to DVI lead. This means that they will not be able to view a DVD that would normally feed through the separate box.
Hence my question, Can anyone tell me if the MySky HD is capable of receiving a composite / component signal (Say from DVD player) and passing through to the HDMI output.

Note:-
(I have made the assumption that you cannot get a true high def image via RGB out of the Sky HD box.)

[Injuised]

I am about to visit a client who's TV is a monitor with a single DVI input, with the tuner etc is in a separate box. They have just obtained a MY Sky HD, so to make the best of the quality I will need to supply a HDMI to DVI lead. This means that they will not be able to view a DVD that would normally feed through the separate box.
Hence my question, Can anyone tell me if the MySky HD is capable of receiving a composite / component signal (Say from DVD player) and passing through to the HDMI output.

Note:-
(I have made the assumption that you cannot get a true high def image via RGB out of the Sky HD box.)

The only inputs Sky have on any of their boxes is the RF and IF the HDi has only got 4 IF inputs with a built in multiswitch, so no