I hooked up a Spectrum 101 cable box to a Sony Bravia tv. Used a bran new HDMI cable. Iput cable box signal into HDMI 1 on the Sony Bravia tv. Got a perfect picture. The cable box works fine. Here is the problem. When I turn off the tv by pressing the power button on the tv then I turn the tv back on I get "no signal." The cable box is still turned on. I did not touch it in any way. The lights are still on on the cable box. To get a picture back on the tv I have to turn the cable box off and turn it back on. Why is this problem happening?

Thanks In Advance

Brian Phoenix