Hi,I have been experiencing frequent interruptions while watching most of channels especially on Ten Action , picture get stuck frequently.I called technician for same problem, he told me to change dish antenna as it was smaller which I did but the problem still persisted.Then he told me to try changing LNB ,after changing LNB signal strength has increased than earlier & frequency of interruptions has reduced but not completely gone away.Now Dish TV CC guys are telling me to change STB as it is old. Should I go for it?Also changing dish antenna or LNB was necessary?Thanks.