AFAIK ..
Slingbox can be connected via SCART to any compatible device. Once it's defined to the wireless network, you''re good to go.
So, as I understand it, if you're on holiday and want to watch something from SKY Sports (from your chorus box) using a browser, you need to leave the chorus box tuned to that channel, and then follow the slingbox instructions get the URL to use while you're away.