If to a V6 press and hold TV and Clear until green light flashes on remote twice. Then press thumbs down 3 times and then OK twice. You should get a solid green and then 2 green flashes, this will program the remote to the V6.
For TiVo and V6 to control TV standby and volume
Press HOME > Help and Settings > Help
scroll to 'program my remote and follow on screen prompts