Originally Posted by Chris S
...the only way to Cast both DSTV and Showmax to a TV is from a Laptop or PC (Did read somewhere in the Forum that Showmax might upgrade to allow Casting from their App?).
Nope, it seems clear from what MC Nic said in the thread I linked to that it's not at all possible, nor likely anytime soon. Don't recall that discussion re Showmax, but that's not related to DStv in any way even though it's sourced from Naspers.
The only way I know is to feed your TV with a direct cable connection that's not app involved, and unlikely to find a workable high def. method.