Tv tuner cards and GNUradio

Hi, I am new to GNU radio ( but not to Linux or Radio). I want to try to
use a Tv tuner card as a radio receiver under GNU radio. I don’t own any
such card at the moment, and am wondering which card or chipset is
currently the best to use under gnu radio.

I am also thinking that I’d like to build a transverter, so I could use
this tv tuner card for higher bands. Has anyone tried this with a tv
tuner card?

Bob K.