You still have the option of purchasing a CRT based hdtv - Sony and Samsung still make tubes. Panasonic got out of the CRT space a few years ago due to declining sales. Your TV is a Canadian 480P model, circa 1999. A tube based crt still produces the best picture, but has limitations - resolution to 1080i, weight, depth, and screen size limit of 34 inches.
"They all display too many motion artifacts and the color depth is no match for a good CRT." I would have to disagree with you on this point. A properly calibrated HDTV will give you an incredible viewing experience, depending upon your source and screen technology. Motion artifacts are more noticeable on LCD operating at 60 Hz. New lcd and SXRD televisions will be operating at a faster refresh rate of 120hz to eliminate motion blur and artifacting. If you are looking for a TV larger than 42 inches, then you will be more likely to notice defects in picture quality - Link:
http://www.techweb.com/encyclopedia/defineterm.jhtml?term=artifact
Digital Artifacts
Artifacts are a natural byproduct of digital compression methods such as JPEG and MPEG, which permanently discard pixels. The greater the compression used, the more artifacts are likely, and fast motion sequences are a major contributor. As TV screens become larger, the distortions are more noticeable. In digital cameras, artifacts may arise when performing digital zoom. When analog material is converted to digital, tiny discrepancies (quantization errors) may result. See blocking artifacts, mosquito noise, feathering and quantization error.
Don't make a buying decision based on what you see in the store. Usually, the signal is split, amplified, and sent to all the sets, resulting in a bit of signal degradation. Purchase what looks good to you - your new set will look better in your home (with a proper hd source) than in the store.