I have a the ATI HDTV Wonder PCI TV tuner. Works great with vista if you use a modified driver. The driver is found here with a step-by-step how to install for vista. The link for download currently broke.

w w w . h d t v t u n e r i n f o . c o m / k r a m v i s t a h d t v w o n d e r . h t m l
^This is one of the links for the setup. 'sorry for the spaces it is the only way I can link a url as a new user =/

w w w . i n t e r g a t e . c o m / ~ c i m i e g l e / k r a m s M C E . z i p
^This is the broken driver link.

If anyone has these drivers "kramsMCE.zip" downloaded and can uploaded a link to me it would be greatly appreciated. I am unable to find any other mirrors anywhere.