Five years ago this week… T-Mobile USA’s TVision Vibe and TVision Live services lasted only months before being shut down, as the company abandoned its attempt to run a full vMVPD service. What remained was essentially an Android TV dongle bundled with YouTube TV and Philo, rebranding T-Mobile as an aggregator rather than a platform operator. Low subscriber scale (around 100,000) and the complexity of running a full video stack, plus pressure on partner MobiTV, made the economics untenable. The earlier Layer3 TV ambition was effectively written off, with T-Mobile reverting to bundling third-party OTT services instead of competing with them. That pivot looks like the right call today, with US operators sticking to aggregation while YouTube TV strengthens its…