To what Sean said, first check if the placements were on Scripps channels. You can see which ones they are at: http://www.scrippsnetworksinteractive.com/
Unfortunately, most Scripps shows “direct license” and don’t participate with PROs. I get quite a few of these- not sure if from JP but I suspect at least some of them are. Also unfortunate is some libraries blanket license to Scripps shows and share none of that blanket fee with composers, not even a few pennies.
If these shows air outside the US, you will get PRO money. But that will take a while (if ever) and depending on the country, could be very little money.
If these placements were NOT on Scripps channels, then what Art said– that link.