computer speakers for improved TV sound

Noob here. I'm curious what people think about the idea of using self-powered speakers like computer speakers and hooking them into the line-out RCA feeds of your TV. For someone who wants an improvement over the sound of their TV speakers but doesn't care about surround and doesn't want to deal with a receiver, is this a reasonable way to go?

I'm thinking about 2.0 and 2.1 sets like audioengine 2 and klipsch promedia and a budget no more than $200. I've heard these speakers are good enough that they can make your audio source, like your soundcard, be the weak link in SQ. In that case it doesn't pay to have a better speaker. So will the TV as source make your speakers sound not as good as they could be, considering you'll be using the analog feeds? How would music sound on these speakers if you played music CD's on these thru your DVD player? I guess it depends on your TV and DVD player, but what would be typical?

Bose markets a 2.1 system just for this purpose (to improve TV sound) called Bose Cinemate. I don't believe the speakers on the Bose come close to matching the SQ of the Audioengine or the Klipsch, but once hooked to a TV or DVD source could you really tell the difference?

thanks for the replies. If it's variable output does that mean the TV remote would control the volume of the signal going out the RCA connections, and if it's fixed it wouldn't?

So I'm not hearing that the TV source would "bring down" the quality of the speakers, except in the sense that it is the nature of TV programming that it is not demanding. So I can expect the TV and DVD player to sound incrementally better if it has a correspondingly better speaker set on it and I don't have to worry about the TV leveling the playing field of the speaker quality in any technical sense.

My TV is a Samsung and it turns out the line-level outputs are fixed and can't be changed to be made variable. This means I can't use my satellite remote to mute the sound or change the volume. I have an idea to get around this but want to see what others think.

If the problem is with the TV, can't I remove the TV from the audio loop entirely and connect the speakers directly up to the audio outs of the sat. box instead? Would my Directv remote be able to work the volume then?

I guess I would have the same volume problem all over again with my DVD remote. If I could run the DVD player's audio outs directly to the speakers as well (the Audioengine 2 speakers can take two input sources), would I have solved the problem?

It just occurred to me that my DVD remote, and probably most DVD remotes, don't come with volume and mute buttons. And this suggests that DVD players have fixed line-level outputs. Maxdog, did the TV you did this to have a DVD or VCR hooked up to it? Did you have to adjust the volume at the speaker for those?

This is a follow-up for others who might be interested in this. I struck out. It turns out that the Directv remote's volume controls do not have an effect on the satellite box's audio line out. The sat. box must have fixed audio outs as well. The Directv remote's volume controls talk to the TV you give it the code for, and depends solely on that for volume functions. (This is in contrast to the Scientific Atlantic cable box that Comcast uses, which does have variable audio outs.)

The same is true for the Samsung Blu-ray player I have. My options now seem to be limited to powered 2.1 systems that come with their own wireless remote control, such as the Bose Cinemate or the Altec Lansing FX4021. Of course, this means a separate remote just for volume, and that nuisance would probably push me toward a universal remote.

Is there a product out there that adds a volume remote control to a speaker set that doesn't come with one? I think I saw a few kits and DIY projects to build such a beast but I don't know if I'm up for that.

Thanks again to all who replied. I could go up in price if I thought it was really worth it for better sound. I have limited space on my TV stand and a receiver or shelf stereo system just isn't going to fit. The other sticking point is the remote control, otherwise the CSW Extreme 2.1's look great.

I have a Samsung LNTxx81F TV with SRS TruSurround XT surround sound. I'm beginning to think that the sound on the TV is decent after living with it for awhile, but it's so subjective and hard to know without A/B comparisons. What are people's opinions of this TruSurround technology. Does it work and how well?