Rename TiVo Boxes

We have two Tivo premiere boxes and recently switched their locations in our house. Now we would like to rename them. The new names are appearing in the tivo online program but not on the devices themselves. One still has old name and the other doesn't display name at all.

I've sent Tivo two emails during the past week and have not received a reply.

Any ideas would be most appreciated.

Thank you,
Kansas Cat Lover