Ultra-Basic Calendar view!
Personally in an ideal view i'd have just a single line per show with in-line tick to confirm if a show has been marked collected!
The calendar has been improved greatly of the years, thank you, I currently have it set as basic as possible with a grid with no pictures and filtered to only display my shows in progress.
I'd love to take this further, and be able to have a ultra simple text-only at-a-glance calendar view of multiple 4-5 weeks at once, where i could scroll through the weeks vertically like a calendar app.
The Settings page could have an option for the Basic calendar which would have a Smaller font size on the calendar to fit more in on the page, with maybe an option for 1 or 2 lines per show.
Via the calendar settings you could add tick boxes in the same vein as the current one for "Hide Specials" for the calendar items of: Time, Channel, Watched, Collected, Hide this show, Lists, rating etc. So that the calendar only displayed the things that were important to the user.
These hidden items could be displayed in an expanded box like that of the (clock+ icon) on the right of the watched/collected boxes on episode or movie home pages.