Thanks for all the info. Unfortunately TVs are not guaranteed to be optimized. I'm going to copy and paste some policy below because it says it best:
Optimized video and free video streaming benefits are Smartphone Mobile Hotspot (SMHS) compatible with smartphones, tablets, and mobile internet devices tethered to a laptop, desktop, tablet, or smartphone. No other devices are currently supported (such as gaming consoles, smart TVs or streaming sticks) due to the way they receive video streams, making it difficult to distinguish the content from other data traffic.
It sounds like the way your TV is receiving DirecTV Now from the console, it can't distinguish it as something to be streaming optimized. It should work on most things, but we don't currently have support for gaming consoles, smart TVs or streaming sticks.
That makes sense – our Netflix service we changed the settings to stream at DVD quality from within the Netflix account settings, unfortunately the DirecTV Now service doesn’t provide this option. I am going to try to set our Roku to steam at a lower rate and see if this fixes the issue. BTW if anyone is interested in accessing the data transfer settings on a Roku do the following:
Press Home button 5 times, followed by the Rewind button 3 times, followed by the Fast Forward button 3 times – this will give you access to the data transfer setting menu and allow you to select what rate to process data.
Hopefully this works for us, otherwise I guess we’ll have to look into miracast options when we want to stream to the TV.
Fingers crossed for you!
If you don't mind reporting back your findings, we'd appreciate it. It will help anyone else in the same boat.