Every time TiVo is either paused then unparsed, navigates from silent screen to live TV, or after completing a fast forward / rewind there is a very high pitched and loud audio "blip" that can be heard.
Reproducible on stock TiVo unit connected to monitor via HDMI.
I'm unable to connect TiVo to home entertainment system at the moment for fear it will damage speakers.
Sorry to hear you're having issues with your TiVo® box and I would like to welcome you to the community.
I have just checked the link provided and I can see one of our team Josh_RW has sent you a post and a private message so as soon as he's able to locate your account he'll be able to look into this further for you.