While many questions tagged with tv-shows don't really deserve it, being about a particualr show or about identification, there are also many that are indeed about TV-Shows in general and thus have a perfect right to bear the tv-shows tag.
Some examples of IMHO justified tv-shows tags:
- Why are there typically no more than 24 episodes in a TV Season?
- Is the "season" meant to be the interval from September/October to May/June or is it not strictly defined like that?
- How does the budget breakdown for a US TV season compare to a UK TV Season?
- Is there a term for the opposite of the Chuck Cunningham Syndrome?
- What happens to actor salaries around seasons 6-7 of a show?
- What rules govern how TV show opening credits are structured?
- In opening credits for TV shows, why does it say 'with so and so' for some actors?
- When/Why did American television change from primarily episodic to primarily serialized?
- Why do TV networks air pilot episodes?
- What is meant by bloopers and marathon?
So I don't see a reason to eagerly delete tags just because they can be misused for many questions they don't apply for. It rather should be decided on a question by question basis.