I Bought Companion I Have A Bose Companion 5, Can I Connect My TV And Use These Speakers Instead Of The Lcd's Terrible Ones?

I have a Bose Companion 5, can I connect my TV and use these speakers instead of the lcd's terrible ones? - i bought companion

I bought the Bose Companion 5 and has a Samsung TV that I use as a computer monitor as well. Is there any way to the Bose home audio, such as TV-use and turn off your TV audio?