I send my Tivo to 2 other rooms using an AVCast setup.
It's worked great for nearly 2 years.

Today, all of the sudden, the picture is very grainy.

My setup consists of a CableCaster, and a MediaCaster connected to my Tivo.
I have the signal sent to 2 other TV's. The Tivo is also connected directly to a TV, and that picture is clear. Only the AVCast TV's are grainy.

I've checked all connections, verified both units have power. What else can I check?

I remember when setting this up that channel 28 was the ONLY channel that would work, so selecting a different channel is not an option.

Again, everything worked fine last night before bed. This morning is was grainy.
I sent an email to tech support, but I don't expect to hear anything on a weekend. Figured you gurus could help.

Thanks!

Modulation with a Cable system is a moving target and you have been hit.

I have a similiar setup and mine went grainy a few weeks ago too. Did you solve the problem?

This same thing has happened to me. Has anyone had success correcting?