Advertisements I recently bought this Tivo. Have had Tivos for over 10 years and have two Series 2, a Series 3, and this Premiere. I have switched fans, hard drives and power supplies over time but this problem is new. Picked up an "M" card and installed it after the guided set up. Called Spectrum and paired the card but received no channels. Recalled them and their tech visited and installed 4 different cards and paired them with the same result. Also along the way he replaced various cables and 2 new tuning adapters with the same no channel results. While he was here we called Tivo and they compared much of the screen info while Tivo analyzed the premier. All Tivo could say was that the pairing was recognized but not functioning due to M card problems. After 4 cards I am thinking it might be the card reader. Has anyone ever replaced a card reader in their Premiere? If yes, must it be from a Premiere or are other card readers useable? I have a very nice Premiere XL4 that may become a boat anchor if I don't receive some advice from a kind soul.