@DaveBinM - Please consider this as an option! Merging On Deck/Continue Watching doesn’t work for everyone. Take this screenshot as an example - the only reason you can even see so many options is because I am on my PC with an ultra-wide monitor - normally I am on a 1080P TV with a Roku, or a 1080P monitor with Plex for Windows.
In the screenshot above you can see a HOST of media that is “in progress” - ie: paused.
The problem with this is that certain in progress media takes precedence over “On Deck” episodes.
A perfect example of this is “RuPaul’s Drag Race Down Under.” My SO & I watch this every week.
RuPaul’s Drag Race Down Under S1E8 was added on 6/19 at 0230. That is less than 12 hours ago! Yet it is behind 8 different other things in the Continue Watching row. Including a movie that I started and stopped on 6/16 (HP #6.) The last time I watched Harley Quinn & Adventure Time was on 6/17, so as far as I’m concerned, RuPaul’s Drag Race Down Under should ALSO be in front of these. The same is true for How I Met Your Mother and Parks and Recreation (both started & stopped on 6/18.) The Mindy Project & The Internship were both started this morning(6/19), after RuPaul’s Drag Race Down Under was added, so those are “OK” in terms of their placement, but do you see how this change simply does NOT work for all use cases? Please for the love of God, make this option toggle-able.
Again, as I mentioned, I can only see this many items because I’m on an ultra-wide monitor. This is what it looks like on a 1080P monitor - I can’t even see any new items because there are so many things in the Continue Watching row before my newly added TV episode that is “On Deck.”
EDIT 2: Ironically, I see even FEWER items on my 55" TV via the Roku app, than I do on my 23" monitor via Plex for Windows. 
I can see 8 items on Plex for Windows, while I can only see 6 on the Roku app.
