Reddit reviews TiVo 2 Head IR Emitter / Blaster

Tivo Infrared extender

I agree. Very similar to the type that [TiVos used.] (http://www.amazon.com/TiVo-Head-IR-Emitter-Blaster/dp/B0054MAVXA)

I had one IR emitter that didn't work, and then a different one did. I kind of thought they were universal, but maybe not?

Anyway, the one that worked for me was this one: http://amzn.com/B0054MAVXA

One exactly like yours (IR emitter or blaster, not sensor) used to come with old TiVo's - it allowed them to switch your cable box to a channel you wanted to record.

Example of a 2 headed one.

Here is how it was used.

It looks like these were also used by many different video recording devices, including VCRs and later DVRs for the same purpose (allowing it to emulate a remote control to switch your cable box to a specific channel)

Here is another similar one.

Yep, a TiVo IR Blaster transmitter (this link goes to the one you have; the one in the FAT is a different style)

It's an IR blaster for a TiVo.

TiVo 2 Head IR Emitter / Blaster
https://www.amazon.com/dp/B0054MAVXA