Fire Stick Freezes

My issue with my Amazon Fire Stick has been addressed before in another post.  However there was no definitive solution or means to an end and the string was 'closed', the last post being at least 5 months ago.  Here it is summed up with information from Xfinity's 'employee' recommendations and customer feedback of the ineffectiveness of the fix recommendations (uninstalling, reinstalling Xfinity App).  On certain Xfinity channels the picture and audio freezes.  It will unfreeze on its own after so many seconds (20?).  One way to get unstuck is to double punch the play/pause button on the Fire Stick remote.  One member mentioned this as the fastest way of dealing with the annoyance.  My freezing has a pattern: it freezes after going to commercial and will freeze a few more times during the ads and then a couple more times after returning to the program being watched, and will seem to be okay after that 2 or 3 freezes into the program until the next volley of ads start.  I either have to have the remote in hand, my finger on the right [small] button, or just settle for missing parts of what I'm watching.  The other fix, I read, is to buy a 'Roku'.  As another member mentioned, as big as a conglomerate Comcast/Xfinity is, one would think they would be on top with technology and having a robust app that has been well developed and is updated as necessary.  Instead we are reduced to being a test audience for their "Beta" app, beta meaning it is still in testing mode.  An app that, in the world of todays apps, it would be very low on the list of effective and popular used apps.  As one customer support told me during one of my calls, "It is the longest Beta App he's ever seen".  I wonder how much longer before it is no longer referred to as beta?