CRT TV vs. flat screen image quality

[Jeffhs]

I will likely be using my 20-year-old Zenith 19" CRT TV to replace my Insignia flat screen when the latter eventually quits. Will I still get the same great picture on the older TV as I am now getting on my flat screen? I ask this because I read somewhere (don't remember where ) that CRT televisions will produce better pictures with DTV signals than flat screens, the reason being that CRTs use scan lines, rather than pixels, to create the images.

Thanks.