Digital tv recorder and Sky

[ayabrea38]

It has probably been asked before,but can I recored Sky on one of those usb tv recorders?I have a Grundig one and thought that since it had a scart input(says for dvd,which by the way works fine)it would be a case of plugging the Sky box in and away I go.Not the case.Even the VCR wont work via the scart.The only thing that does is the dvd player,which over-rides the digital tv picture,I cannot choose to watch tv if the dvd player is switched on.Is this just the way things are or do I have a faulty Tv recorder?
Why can I not record Sky this way?Is it cos Sky are mean or the people that make the tv recorder only want you to record on their machine?
Thanks for any answers.

[BBBE99]

Sky, Tele, Dvd player override stuff...
This sounds like the question about the remote control not working.
Maybe it's as simple as calibration...