Hitachi VT-M291A Owner's Manual page 30

CHANNEL MEMORY PROGRAMMING (Without a Cable Box)
4
Enter the desired channel using the number buttons. The channel flashes.
You must precede single-digit channel numbers with a zero (02, 03, 04 and so on).
5
Press ADD/DELETE button so that "DELETE" flashes on the display. The channel is
deleted from the VCR.
For next channel you wish to delete, select that channel and follow step [5].
If you press ADD/DELETE button again, the channel is memorized again.
6
Press MENU button. The TV screen returns to TV mode.
To check the channel(s) that has been deleted, press CH or button.
30