Specifically the word "to", which until a couple of years ago most people pronounced exactly like "tue" in Tuesday, but now "tuh", like in Tums.
Rather odd considering Tuesday has a "u" but "to" does not.
Yes, it's a little thing.
"Little" in the same way that listening to a wonderful symphony is ruined by a note played off-key. It interrupts one's enjoyment like fingernails on a blackboard. Trained musicians should know better.
The "trained musicians" in this case are newscasters, commentators, and other on-air personalities. Actors and actresses. Public officials and politicians. Our otherwise-articulate president. Even teachers. (Yes, teachers!)
All supposedly "educated" people who've caught the "tuh" bug.
Maybe you haven't even noticed on hearing:
- We're going tuh the mall...tuh the weather/sports...tuh the movies.
- We went tuh church...tuh dinner...tuh meet with constituents.
Or should that be "tumstone"?