I had a JVC FX-1100 AM/FM tuner which performed well until it started having reliability problems. It was a well-designed unit with lots of bells and whistles and jacks for two antennae, which would be useful for those trying to pick up stations from differing directions. Kenwood also had a reputation for their tuners, although I have had no experience with them. I now use a Luxman tuner that was Stereophile Class A in the '90s, and it still sounds good and works well.
My old Harman Kardon Citation gear (preamp, amp, tuner) was nearly state-of-the-art at the time; so maybe HK was a high-end company that evolved into more mid-fi. Those components performed well for decades.