Can't Shut Off Live Radio...Driving Me Nuts

Hello!

Last Saturday, I wanted to listen to an away basketball game and the only way to do so was to listen to a local radio station. I went on their site and they had a listen live button which I hit and the station (WCTC-1450AM in NJ) played fine on my computer. I didn't have to download anything.

I used my computer during the weekend and no problems. Today all I can hear is WCTC loud and clear and I DON'T want to. I've tried to stop it, but no luck.

I would very much appreciate any help in shutting this radio station down.

Thanks,
Barbara

PS: Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Professional, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM)2 Duo CPU T6600 @ 2.20GHz, Intel64 Family 6 Model 23 Stepping 10
Processor Count: 2
RAM: 3999 Mb
Graphics Card: BB Capture Driver, 4 Mb
Hard Drives: C: Total - 292016 MB, Free - 62173 MB; D: Total - 13026 MB, Free - 2139 MB;
Motherboard: Hewlett-Packard, 3627
Antivirus: Panda Cloud Antivirus, Updated and Enabled

 

Closing the website doesn't stop it?