|How are you connecting the TV to the network?|
If you're using a wireless interface, try a wired instead and I'm sure you'll see an improvement.
If you're using a wired connection now and already own a SOHO router, I would ensure you have the most up-to-date firmware for your router. If you don't, update it and see if the problem goes away.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.