Does anyone know how to Chromecast iFollow onto an android TV?

I’d like to know how to do this VPN thing, I can transfer from my iPhone screen to the tv via a cable as I watched the Burnley game like that, but don’t know how to get I follow.

Yup I’ve discovered the same, luckily had the laptop to revert to with a hdmi lead but picture was awful compared to on phone, had to watch first 30 mins on the phone but the laptop picture has got better for the end of the half.