The first thing to consider when you want to get your music on television or film is the theme of the song.The theme should be that which can fit the needs of many people, for example about love or any other very much popular thing among people, like trying to address an issue that is a manace in society, or delivering information to fill some gap in society.
The second thing is to do the music in a different way as other people do it. It can be the same lyrics of a common song, but if it is done in a different and creative way, then be sure that it will attract attention, to be captured by the media (television), and even the larger society.Here you will also be required to make the voices and the instruments different from the normal as done by many musicians, but should remember that originality should be considered, because music is an art, where it gains taste depending on how it is done.
Third, you have to consider the type of audience that you are addressing. This is very important, because you have to know who actually watches television most, and what they need. This means, as noted earlier, the music has to be relevant to whoever people you need to reach.
though not very important, you should aslo sing with other reknown singers so as to gain a base. It may be difficult to reach a reknown musician, but should keep on trying, because, everyone, starts somewhere, and ultimately will reach somewhere, where he/she wants to reach if only determined. you should also accept criticism, and accept correction and make the required ammendmenets to the singing. For your music to be loved,you have to love it first and believe in yourself.