I have an old Slingbox - bought it about 10 years ago. Since my computer is quite some distance from my tv it is set up that the cable goes directly into the slingbox, so I am limited to the "basic" channels. This has been more than fine for the last 10 years, but now Time Warner has upgraded their system to all HD and I can no longer get any anything on my sling box. I get a message that I have to connect to a cable box. Do I need to work with Time Warner or do I need to upgrade my 10 year old slingbox?