Sound cuts out on DVR'd shows while using Ipads

I have 2 ipads and had this issue a year ago and it continues. 

The irony this week is that the sound cut out during an xfinity commercial 

Over  the last year I have restored both my Ipads but the problem persists. 

The shows are fine using cable box or roku. 

But more and more we use ipads. a 42 inch tv does not cut it anymore especially when programing shows somebody looking at a text or series of texts on a phone. 

with the voice /sound cut outs we miss important lines. 

The  cut out does not  occur with say Amazon or Netflix  or apple TV. 

I hardly watch live shows but this certainly occurs during recorded shows. Do not recall if a live show is affected. 

and its happening whether in house or out of housem using internet wifi. I am too cheap frugal to watch shows using cell service. $250 a month for TV/Internet is a lot in retirement-when you finally have time to watch more tv.  

To say the least, its annoying, especially with service cost so high and all sorts of new alternatives. I do not want to change as its better than having all sorts of streaming services.