Basic flaw of Series listing!

Hello,

I am a retired librarian and have been cataloguing & listing books and media throughout my professional career.

When it comes to listing Miniseries & Multi-episode series, there seems to be (I'm new and have so far only managed to add 1 Film to the data base!) a basic flaw.

When it comes to listing data that apply to the entire series, these data should go into a 'general section', and not have to be repeated for every episode!

e.g.

1. If all the episodes of a miniseries have been released in the same year, the release date should go to this general section. Episodes 1-4 (2012)

2. Actors playing the main characters in every episode should also go into the general section (Tony Shalhoub, Ted Levine etc. in "Monk")

The same practically applies to all permanent contributors.

3. A general plot should also describe the series (ingenious detective with a host of compulsive disorders & phobias solves criminal cases in Sherlock Holmes fashion).or 'The ordeal of a group of young female Soviet snipers at the Eastern front in World War 2'