Service not found means that you need to rescan satellite. On NOVA Sports 7, new frequences are provided. I think, NOVA is doing domething. Some channels are working but signal is up and down each time - very unstable. In many channels, EPG says TECHNICAL UPDATE - probably NOVA is doing some technical works. Visit their official site and read news, maybe it's clear up the situation. Moreover,some channels are openned faster, the other ones- longer (Animal Planet, Discovery Channel, E!Entertainment, Fox Life, etc.).