Media Center does not have Blu-ray menu support.
So if you want to select other titles on the disc, you need to right-click the video and select it from the Title list.
This ranges from good to bad.
On a good disc, you will have a structure that is generally:
- 3 hours (three episodes plus opening titles/credits/previews/recaps)
- 2 hours 51 minutes (three episodes without opening titles/credits/previews/recaps)
- 57 minutes (episode 1)
- 57 minutes (episode 2)
- 57 minutes (episode 3)
On a bad disc, episodes may be structured out of order, sorted by duration, there may be multiple titles containing the same episode with slight variations, it's lacking a big title which contains all the episodes on that disc etc. which is a nuisance if you're just wanting to sit down and watch the disc.
But if you split it out to MKV files using MakeMKV, it's usually not that difficult to sort them into the correct episode order - especially if there is a "main title" which includes all the episodes, since that will give you the segment numbers in order.
I would understand if you'd prefer to just watch TV shows in another player that does have menu support though.