TKD originally had many joint locks and throws, but in light of the competition era, most of that has been dropped(along with many other hand strikes) in favor of punches and kicks.
I know that alot of people think this nowadays. But, the original kongsoodo/tangsoodo/taekwon arts did not have any takedowns or jointlocks. The original was kick, punch, block, strike techniques.
This is simple, yet difficult to explain in text without getting long-winded.
Prior to the re-introduction of such arts back into South Korea following WWII, many junior high and high schools had Yudo training for PE.
Back in those days 1945-1959, it was HIGHLY frowned upon to train in more than one dojang or art. So much, that is was very rarely done. If you tried to train somewhere else and someone from that dojang "told on you" you were likely to get beat up by some of the students or the instructor.
I personally think it is a wonderful thing that Korean martial artists began studying multiple arts later. My own instructor, Grandmaster Kim Soo, started at the Changmoo-Kwan in 1951, transferred to Kangduk-Won (same curriculum as Changmoo-Kwan) in 1957, then additionally trained in Yudo starting in high school under Han Jin-hee (Kangmoo-Kwan), and started Hapkido (Sungmoo-Kwan) in 1958 under Han Jae-ji.
He often tells the story about using Yudo takedowns in sparring at the Kangduk-Won and getting into trouble with Master Park Chul-hee, then using Kangduk-Won techniques at the Kangmoo-Kwan yudo dojang and getting into trouble with Master Han Jin-hee.
When he started as a white belt in Hapkido in 1958, someone told Han Jae-ji he was a black belt from the Kangduk-Won and Master Han tried to hurt him on purpose in a technique demonstration for the students. Afterward, they became friends.
This is just one of the examples from training at that time. But, I've been told by Grandmaster Kim that people didn't train very long (more than a few months or 1 year) during those days and they didn't (or rarely) trained simultaneously in several martial arts before 1960.
R. McLain