https://www.theverge.com/circuitbreaker/2018/9/27/17907070/tivo-bolt-ota-over-the-air-antenna-tv-dvr

It’s been over four years since TiVo released the Roamio OTA, a cheaper version of its then-flagship Roamio DVR that offered TiVo’s famed TV recording features in a box specifically meant for cable-cutting customers. The rest of the TiVo line has long moved on, in the form of the Bolt family of products, and now, over-the-air customers are getting an upgrade, too — in the form of the Bolt OTA.

As the name suggests, the Bolt OTA is basically a stripped-down TiVo Bolt — there’s no cable card or cable turners, just a jack to plug in your over-the-air antenna. Like the regular Bolt, it supports 4K and HDR (both new additions from the Roamio OTA), and the company says that it’s seven times faster and comes with three times the memory of the previous model.