That link works fine for me, but you might be better off using this one: http://support.slingbox.com/sitecore/content/Support/KB/KB-5000164?sc_lang=en-US
And check out https://community.sling.com/message/10363#10363
I'm trying to download the compatbility list from Sling Media Support - Audio/Video Device Compatibility List but the link seems to be broken.
I just wanted a budget unit that has SCART or composite connections (to allow me to record from the SKY box) but is then compatible with component inputs available on the Slingbox Pro-HD.
PS - Does anyone know whether the EchoStar HDS-600RS is compatible with Slingbox catcher and if not what's the current equivalent to allow you conect to a slingbox which is managing your home systems from another room with just a TV ?