From experience in car TV tuners tend to suffer from poor reception , especially digital units. For that price I would doubt the quality will be great. The only good ones I've seen are oem tuners which usually have various antenna throughout the vehicle combined with amplifiers to obtain a decent picture. I'm going to fit a single din size dvd player under the passenger seat.
tested the cko tv tuner and it picked up all the stations with a quality of between 80 and 90%
this was just wired up to a 12v supply in the house , so looking good so far , i think i might mount the antennas in the a pillars so they are hidden