i have dish network, far as i know there's no ground cable from my receiver to the antenna either, & imagine trying to prove that to direc to get them to repair or replace your tv will be a challenge at best.
using mordaunt-short carnival 2 bookshelf for fronts, carnival 3 for surround & carnival 5 for center. have a bic F12 475w sub, so which receiver would be best? i'm leaning to the yamaha cuz it has a builtin phono input. Thx!