Go to seminars, give seminars, go to conferences, talk at conferences, and ask. This is what advice I was given. At school we had someone who was an alum come

Go to seminars, give seminars, go to conferences, talk at conferences, and ask. This is what advice I was given. At school we had someone who was an alum come in to give a talk about how she got her own show on Discovery Channel (sorry, I forgot what the name of the show was--it was about doing absurd/impractical things to be "green" ie beaming solar power on a mountaintop to another place 50 miles away). Basically she got the gig because she was a phenomenal presenter. Really really engaging. At one of the conferences she presented at, a scout for the Discovery Channel told her that they wanted a PhD who was entertaining enough yet had a way to capture the attention of a non-scientific audience. She flew to NY to audition and was later placed with a team of engineers and given a $40million budget to design the show. Moral of the story: Be good at conveying information and stand out with niche.