Kung Fu

Ludi Lin is the only reoccurring actor on the show who regularly practices martial arts outside of his work.

Every week features a stock-footage sequence that shows the streetscape outside Chinatown's "Harmony Dumpling Restaurant"; in that sequence is a fake San Francisco cable car with an insistently-dinging brass bell being rung twice. The fake cable car is clearly a two-axle motorized vehicle running on four pneumatic rubber tires. The roadway is also missing the required steel tracks as used by a real San Francisco cable car. San Francisco cable cars have a complicated undercarriage, and the car rides on a pair of four-wheel trucks with flanged iron wheels (no pneumatic rubber tires), designed for the cable car narrow gauge track of 3 ft 6 in (1.067 mm).