Ar's article gives some additional information that sheds some light on why T-Mobile probably acquired them but still asks the same question you have in the end

Ar's article gives some additional information that sheds some light on why T-Mobile probably acquired them but still asks the same question you have in the end. https://arstechnica.com/gaming/2017/12/t-mobile-promises-to-end-the-complete-bulls-t-from-tv-companies-in-2018/ https://arstechnica.com/gaming/2017/12/t-mobile-promises-to-... > Layer3 TV brands itself as "The New Cable." ... offering access to a wide range of HD and 4K channels (more than 275 in total), streamed using the highly efficient H.265 (also known as HEVC) video codec and a custom set-top box. It's a pure IP service—there's no tuner in the box, and it will connect over Wi-Fi—and to support it, Layer3 has built out a fiber distribution network and data center in Denver that handles transcoding shows into HEVC. It also has partnerships with Internet providers to provide the last mile connectivity. This private backbone network should mean that Layer3 doesn't suffer the kinds of issues that Netflix dealt with a few years ago when its links bought from Cogent became congested. I suspect that T-Mobile is buying them for their technology and plans to scrap the current service offerings and try to offer an À la carte service. If they're able to do that it could be revolutionary but that's a big if. Most cable packages exist today because networks force their channels to be sold in bundles, you can't offer ESPN without ESPN2 or the Disney Channel. Sling TV is allegedly À la carte but it's really just a basic cable bundle with the really crap channels excluded.