Broadcasting is one kind of Transmission.
But it is differentiated on the point of "who is able to receive."
Broadcasted signals can be received by anyone. No authentication or payment is required. Just one needs to have an receiving antenna that is capable of receiving the broadcasted signals.
Transmission can be thought of as the Dish TV transmission. You will need to have the Set-top box (or the authenticator) to be able to decipher the received signal and show it on TV.
PAL and DVB-T are the encoding standards used for video signals.