Television technology was invented during WW2 (Roosevelt) and developed after the war (Truman). The first President to make an appearance on TV that was broadcasted to the public was Eisenhower. Regarding presidential elections, the first televised presidential debate was between John F. Kennedy and Richard M. Nixon.
If you mean President Andrew Jackson, he was long dead before TV was invented
The television had been invented, but was not widely available, nor were there TV stations to broadcast anything.
third US president, Thomas Jefferson, invented revolving chair
FDR was president of the US when electronic digital computers were invented.
Warren G. Harding was the first US President to own a radio.
Harry Truman was the first US President whose inaugration was shown on Television in 1949.
I assume you mean "why wasn't television invented earlier". Us humans had to learn a certain level of Electronic engineering Before the tv could be invented. Once we were good enough at that, the tv soon followed.
TR never saw a TV they hadn't been invented in his time. It will take another 40+ years before there was TV. Electricity had just been invented when TR was president.
Harry Truman was the first president to have his inauguration broadcast on television, on January 20, 1949.
Nixon
Harry S Truman.
Franklin Delano Roosevelt.