I'd like to, but the fact they required the TV was pretty crazy, to me. They've captured a huge portion of the smartphone market, but apple tv is only 1-2% of the market, and in many countries much less than that.

They don't allow your phone to show Fitness+ on the TV through HDMI, nor through airplay. The phone screen is just way too small.

So what's left are iPads, which can be a really great experience, particularly on the 12 inch pro, but it's a shame they don't allow Macbooks... I'm okay with the buy-in to some extent but man... A watch, phone and an apple tv is necessary, all from the same company, plus a subscription just to do a video-assisted workout that shows your heartrate on the screen? That's a pretty insane proposition. Would've been great if they allowed more options or third-party stuff. Just casting from my iPhone would've been a good start, or casting on my macbook... Honestly it's pretty ridiculous.

Happy Macbook, iPhone, Apple Watch and Airpod Pro user, otherwise.

I don’t know where you got your information about fitness+ playback via airplay but it is incorrect. I just tried it and it works fine.

From where to where? It's been all over the forums and news the past few weeks, e.g.:

https://www.macrumors.com/2020/12/14/apple-fitness-plus-no-a...