Hi jaapk
the Dragon/T-Rex Cam requires firmware loaded to open channels and work with some cards, these are known as Predator files, the latest version is 3.43.
At present not a lot is open but you can still open Easy TV on Astra 19.2E, along with 2 TCM and Cartoon Network.
You can also get SRG Swiss package on Hotbird 13E, and a selection of other channels on 30W. There are a few others including 2 mature content channels on 5E.
You should also get 9 months viewing of INXTC and XPLUS, 2 mature content channels, on 13E and 10E, usually included as a SIM card.
Yes you can use your S*y card in the Dragon Cam, but you will need to input your S*y cards serial number into the Dragon:
You can find this 10-digit number in the menu of your original S*y box,
services->system setup->system details.
You need the SERIAL NUMBER (and NOT the viewing card number!)
Now go to the menu of you Dragon, settings->NDS Box serial.
Here, enter the 10 digit serial number including any leading zeroes.
If your NDS card was already inserted into the Dragon, remove and re-insert it after changing the Box Serial.
You will need to replace your card into your digibox periodically, every month or so, to enable it to receive the stay alive signal.
Please post back when you receive your equipment if you need any help with programming the Cam.
Best wishes
Mickha