Unplug the TiVo HD then plug it back in and let it reboot. See if that helps.
If your not seeing a guide go into settings/channels/channel list and make sure you have checks next to the channels you recieve.
In the future, if it aint broke, dont fix it!

If your not seeing a guide go into settings/channels/channel list and make sure you have checks next to the channels you recieve.
In the future, if it aint broke, dont fix it!