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?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?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?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?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 happens to actor salaries around seasons 6-7 of a show?
- What rules govern how TV show opening credits are structured?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?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?When/Why did American television change from primarily episodic to primarily serialized?
- Why do TV networks air pilot episodes?Why do TV networks air pilot episodes?
- What is meant by bloopers and marathon?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.