It had no effect. There was no regular television broadcasts in 1920 because TV was in the experimental stages. No homes had TVs. Even radio broadcasts were still in the early stages. It wasn't until after WW2 that TV had any large impact on the voting public.
The first American television station to broadcast was KDKA in Pittsburgh, Pennsylvania. It began regular programming on November 2, 1920, primarily airing news and entertainment. KDKA's inaugural broadcast featured the results of the 1920 presidential election, marking a significant milestone in the history of television.
I'm not sure if this is what you were asking for but the election of 1920 was the first time women could vote in a federal election nation-wide.
Early documentaries produced in the 1920s gave rise to a contemporary type of television programming referred to as reality Programs.
Broadcast Journalism Television and Radio News originated in Pittsburg. The first radio news broadcasted on November of 1920 showcasing the presidential election which resulted in President Harding.
The first working version of a television was demonstrated in London in 1926. It was the invention of John Logie Baird.
There were no shows in 1920. Television had not been invented yet.
A+ Phonographs
The result of the 1920 Presidential election is that the Republican candidate Warren G. Harding defeated Democrat James M. Cox.
The candidates in the 1920 presidential election were Warren G.Harding and James M.Cox.
Just before the election of 1920.
James M.Cox
Women was first allowed to vote in the US national election of 1920.