Well, Ten's dumbed-down coverage is only a recent thing by comparison. I still have no idea why Ten lets Rust/Barid/Beattie/McConville commentate. On the one hand, Sky has a world-class line-up with people like Brundle and Hill who provide actual insight, and Ted Kravitz, who knows everyone in the paddock and can get information faster than anyone else. On the other hand, Ten's coverage is made up of a) Rust, a guy who is only capable of talking about trivial nonsense and hyping the Australian drivers up, b) McConville, a failed V8 Supercar driver who seems to resent Formula 1 drivers because he's not in Formula 1, c) Beattie, an expert analyst who raced motorcycles, which is about as far away from open-wheel racing as you can get, and d) Barid, a Carrera Cup driver whose only function is to serve as a punching bag for the other commentators. Their insight is limited to whatever is happening on-screen at times, and anyone who has been following the sport for more than fifteen minutes knows that their analysis is very wrong. They have a tendency to say something, and then be immediately disproven by the actual race commentators (ie claiming that no-one went out in the first forty minutes of FP1 because the track was wet when the drivers don't actually go out because they're doing setup work).