I seem to be the only one who even remembers this TV show. As a matter of fact, I used to think that J. Carroll Naish was the only person to play Charlie Chan, but that was before I discovered the movies. Naish seemed to be very comfortable playing anything but what he was - German-Irish - but he specialized in "exotics" (meaning Asians - then called Orientals - and East Indian mystics. He even played a few Italians and even Mafiosi) I remembered one particular mystery where a boxer dies in the ring but from a gunshot wound. I particularly remember it because the very same mystery was used in a Mr. Moto picture, an episode of "Burke's Law" and the 1975 Ellery Queen series starring Jim Hutton and David Wayne. I won't spoil it for you in case you happen to come across any of the three versions - and I suspect there were more) As his "inscrutable" American son, I USED to think it was actor Benson Fong who had already appeared in the movie series with two other Chan actors as different sons but having since seen several episodes on DVD, I found that it was actor James Hong when he was very young. Another thing I found where my memory was faulty, was the episode with boxing in it was a kick-boxing plot. Plus, the entire series was filmed in England, and Naish's interpretation of Chan differed not at all, in terms of accent at least, from the character he played as the evil Dr. Daka in a Batman serial. There are few of the famous aphorisms regularly spouted by Chan in any of the series films which is somewhat of a disappointment. A minor drawback is the absence of the famous Charlie Chan goatee and bowler hat replaced by a straight mustache, a straight bow-tie and a fedora. The opening shot of Naish as Chan coming from out of the London fog is still impressive, as are the Chinese titles that change to say "The New Adventures Of Charlie Chan." It is particularly cool that Naish also was in a couple of the Chan entries when they were still at 20th Century Fox. I even caught an uncredited appearance of actor Victor Sen Yung in a teaser for the show (the opening cliffhanger) who had played number two son Jimmy Chan as well as Hop Sing, the Chinese cook on Bonanza.
What I definitely remember it was fun and riveting at least for a 7 year old boy in front of the old Philco TV.
Later, Naish returned to TV in a comedy series called "Westward Ho" playing an American Indian named Hawkeye. Another fond childhood memory. Another great character actor who worked almost to the very end and never became a star.