The lab assistants Tanpei & Junko use Time Bokan to help them find the missing doctor who’s lost somewhere in time.
The latest to get announced is the spring 2000 anime spinoff series Time Bokan 2000: Kaitou Kiramekiman, which is now slotted for a Blu-ray release on April 21st, 2017 priced at 10,800 yen.
With the recent Time Bokan 24 series out there it’s little surprise there’s an attempt to make good on some past works.
So it’s getting presented that way on the single Blu-ray disc, just with higher quality encoding than DVD materials can produce.