Axiom Home Page Forums General Discussion Home Theater Onkyo 606/poor signal

By tiling issues, do you mean artifacts, blocking etc.? Are you upscaling through the Onkyo? If this is something that happens regardless of the source, TV box or DVD, then I would suspect either the HDMI cable, it's connection or the Onkyo, If it is just when watching TV then I would look at the Cable from the box, the tuner box itself or it is just poor signal quality (most likely).