Picture quality on a 19" CRT TV; analog vs. digital

[Jeffhs]

I have a 19" RCA XL100 CRT TV (1999 model). Will I notice much of a difference, if any, in my set's picture after the digital transition? I read somewhere (don't remember where offhand) that most viewers with CRT-based sets with screens under about 25 inches won't notice any difference once everything is broadcast digitally. I also did not notice any changes whatsoever in my TV picture when one of the local stations (WKYC-TV, the NBC affiliate in Cleveland) ran a DTV "soft test" recently. I honestly could not tell when the analog signal had been shut off for the test, leaving only the digital broadcast; my TV picture was as good the entire time of the test as it always has been. I have Time-Warner expanded basic cable service on both my TVs; my living-room set (the RCA) and my Zenith Sentry 2 in my bedroom.