Both the Matrix revoltution and Reborn Cams are very old technology now.
The latest cam is the Diablo 2.3 but you might be better off getting a cheap patchable receiver, like the Technomate range, which can be picked up very cheaply.
Currently open, on most receivers and cams, are premiere 19E, Polsat 13E and Digi TV 1W, but expect that to change soon as they have been open for some time now.
The Diablo 2.3 also gives you Canal Digital 1W and DigitAlb 16E, as well as what's listed, but again no none can tell you how long these will stay open.