We've recently had a new TiVo box as the last one wasn't working. In order for it to work we have to turn it of on the mains and back on again. The new box is exactly the same. It's quite annoying it takes so long to set up. my parents have a TiVo box and they box is set up in seconds. We have to wait a good several minutes for it to work. Doesn't seem right that we have to use the mains for it to work.
When the tv box goes into standby We press the on off button, home button as suggested and we have the home screen where we can search for things but no picture and no sound. The only way I can get a picture is by turning of on the mains. It's not a case of pressing the on/off button I've had the TiVo box since it first came out so know how to put it on.