hello,
i want to select one same column from 3 tables and get a rows from this one column

let's bring the code

mysql_query("SELECT * from tv,movies WHERE hash='123'");

so now i want the column called hash from the tv and movies to bring result from the hash number

if you have WHERE hash='123' then why do you want to return the hash column? you already know what value it's gonna have

Additionally: you are missing a join condition between tv and movies.