Have you tried
Mozilla Firefox (safe mode)?
Did you try to get to the TV site using the IE you found?
If it works in either of the two things listed above then it is being blocked by a Firefox add-on. Otherwise continue reading ...
Have you tried any Anti-spyware/spybot programs like Spybot Search & Destroy's Immunize feature (or your AV may even have a feature that adds hosts file entries)? I would suggest you check to see if you have any entries in your hosts file. This is a hidden system file and accessing it depends on your computer skill level as it can be complicated; what I consider to be a faster way is to install a free product called
hosts manager which is included in our
Freeware DB.
Simply install HostsMan and run it. Find the icon with a green H in the Taskbar Notification Section and right-click, deselect the
Enable Hosts option (this will turn off any website blocking done by your hosts file) & the icon turns to a red H. Now try accessing your website with Firefox or IE. If it works you know it is your hosts file, if not then you can uninstall hostsman, as you likely have no use for it. If it does work then I would suggest you keep it enabled normally and only disable it to watch your programs, because not only is it effective at blocking many ads it also may be blocking known evil scripting sites, etc.
Still an issue? Please answer a few questions ...
Do you use Windows Firewall or something else like Comodo or Norton or some other AV?
Do you have a wireless router? Has it worked in the past even with your router hooked up?