Nope, not from here
In a radio spot, an announcer just called Tigard as "Ti-guard." It's pronounced "TI-gerd." He also seemed to emphasize both syllables, not just the first one. Odd, and overpronounced.
So. NOT a locally-produced ad.
"TI-guard." Sounds like "Tigh guard." Guarding Tigh from his flask? Good luck with that.