Hi, this is my first post but i have been a tivo owner for years. I recently upgraded ti a tivo HD had olando brighthouse out and instaled a m cable card the tech checked the hd and said that you are good to go but after he left i did guide set up and it found all of my new chanels but i can not get the digital chanels from 100 up but i do get the hd chanels from 1013 up when i tune to any of the digital chanels and check the siginal it says that the signal is 100% but no picture or sound other than the tone of the signal checker i am at a loss and they cant get any one out till friday i was just wondering if i am missing somthing?