Optic TV recordings: how can i see what has been viewed?

[AKS1]

With the old Telus box, I could easily see in a Series recording, which episodes had been viewed. They were greyed out. With this new system, I cannot tell. Because deleting recordings is so arduous, I end up with literally 80 episodes of a series with absolutely no way to see what I have viewed and what will be new content to me. 

Please tell me there is some feature I can switch on to do this … this is literally unbearable. 

[Rocky3]

The only way I know is to click on the oldest and up pops play or resume but it also adds delete. It is the delete that clues me to I already watched that one.