Hello trazomsuedama,
Thank you for reaching out in Apple Support Communities. I understand you're missing the internet radio stations that were stored in iTunes on your PC.
Accessing your favorite radio stations in iTunes is a feature I personally enjoy and I'll be happy to help.
I recommend making sure that your Apple ID account is signed into iTunes. To verify that, you'll need to open iTunes and navigate to the menu bar by selecting Account > Sign in: Set up and manage an iTunes Store account on PC
In addition, please make sure that the internet radio station is not hidden in iTunes. Here's how: Customize the iTunes window on PC
Please let me know if that helps.
Kind regards.