Nan50, I am having the same experience you did with Acorn TV. Apparently after a month or so what was advertising-free programming through the subscription to Acorn TV through Roku I am seeing them pop up quite a bit in a single program. This is not what I signed up for, and I am shocked that Roku's position is to "check with the programming provider (Acorn TV) as I am paying money to Roku directly, NOT Acorn TV, so expect Roku to take responsibility instead of "um, gosh...we don't know."
Is this going to be the future experience with Roku....premium subscriptions that start out great then over time evolve into "broadcast" television-like endless streams of adverts interrupting the viewing of programming?
I "cut the cable" cord...for this?