Roamio OTA and Logitech Harmony 650?

First - hello from a brand new Tivo user. FWIW - I'm loving it (and the Mini)

Either this hasn't been direclty addressed, or my search-fu is horribly weak.

I'm thinking of picking up a Logitech 650 to control my AV receiver, and was wondering if the OTA with the RF remote (series 5) has an IR sensor in it. The Logitech site says the 650 will control an OTA, but I don't know if there's an earlier model that is IR only.

Thanks.