Q: takes a long time to load a program and then stops in the middle to load again/

Hello janeybev

Start with the article below to troubleshooting the Wi-Fi connection. You can also plug it in through Ethernet to get a much more steady connection.

Apple TV (2nd and 3rd generation): Troubleshooting Wi-Fi networks and connections

http://support.apple.com/kb/TS4546

Thanks for using Apple Support Communities.

Regards,

-Norm G.