Removing Dot Crawl?

[Penthode]

My old split sound RCA TV provides a full 4MHz video bandwidth. The set was built before color broadcasting and the 3.58MHz dot crawl on color programming has always been especially noticable on these sets (when aligned to manufacturers spec.) because of the wide bandwidth.

It occurred to me that all DVD players and some ATSC DTV over the air set top boxes feature S-Video connectors. This means that a "pure" black and white (luma) only signal is available without the chroma contamination (the dots) to run old black and white wide bandwidth TV sets. Has anyone in this forum considered this?

It is interesting to note that the engineers in the early fifties working through the second NTSC, knew that the introduction of "compatible color" would mean that the interference may be a problem. It was their opinion that the benefits of color would more than offset the loss of a little picture resolution. This may explain why the bandwidth of B&W TV's after the introduction of color in 1953 rarely exceeded 3MHz.