To restart your DVR please perform the following steps:
Step 1: To restart your DVR:
Tivo with HD menus: Go to TiVo Central > Settings & Messages > Help > Restart or Reset System > Restart the TiVo DVR
TiVo with SD menus: Go to TiVo Central > Messages & Settings > Restart or Reset System > Restart the TiVo DVR
Step 2: Press THUMBS DOWN three times and then press ENTER.
If you cannot restart the DVR from the Tivo menus:
Step 1: Remove the power cord from the back of the DVR.
Step2: Wait at least 15 seconds and then reinsert the power cord.