Clean Reinstall of iTunes

Uninstalling and reinstalling iTunes isn't meant to reset the library. General instructions for creating and switching between alternate libraries can be found in Use multiple iTunes libraries on PC - Apple Support, but yes, Apple don't seem to provide a detailed guide to the components of the library.

tt2

This is copied and tidied up from an old post. While not quite what you were asking for it may be relevant. Reinstalling iTunes or rebuilding the library from scratch isn't the right approach. It may be that selecting the episodes of the show in question, and using Get Info (ctrl+i) to rename the show as <Show>X, then back to <Show> may link it all together as a single season. That is assuming that the season numbers, episode IDs, etc. make sense. Get info has altered over the years and changing some of the tags I've mentioned below is no longer easy for video content. Hopefully it isn't necessary however my Scripts for iTunes for Windows page has a number of scripts that can be used if needed.

In principle TV Shows are grouped on the Show field and within a show sub-grouped on Season No. In practice recent builds of iTunes and/or Apple TV firmware seem to be taking account of Album, Artist & Album Artist in certain views. For consistency I therefore suggest the following approach:

Show = Album = <Show Name>

e.g. "Heroes"

Artist = Album Artist = <Show Name> or <Show Name> Cast (or something like that)

e.g. "Heroes Cast"

Season No. = <Season No.> or <Blank> (Separate seasons or all listed together)

e.g. 1-2

Episode ID = s##e## (This field, sorted alphabetically, controls order)

e.g. s01e01 - s02e34 (use s##e### when >99 episodes)

Episode No. = Track No. = <Absolute Episode No.>

(Can also be per season, but abs. is better) e.g. 1 - 34

Disc No. = <Season No.> (Can be set even if merging seasons)

e.g. 1-2

Taking this approach you can always merge or split into individual seasons simply by clearing or setting the Season No. field.

So, for example, this:

or this:

can become this:

(The original poster wanted to be able add custom artwork for each episode, so needed to make more seasons.)

For general tips on organizing media in iTunes see Grouping tracks into albums.

tt2