The Cinema 7 was made before TiVo or Replay were even invented, so there's no codes in the remote to work these devices. Your only immediate option is to learn all the TiVo finctions, people have reported being able to learn as many as 30 buttons before the memory limit is reached.
The more advanced users should check into building a JP1 interface and adding the code.
Rob.
http://www.hifi-remote.com