It's not the S-Video cable that is important, but the comb filters used on the analog signal to filter the untangled luma and chroma information.
What you are really upset about is the declining quality of comb filters contained inside TVs.
Epson 8350 / Panasonic AX-200u / Optoma Graywolf 92" / Draper Luma 92"
Samsung 51F8500 / Panasonic P50ST60 / Vizio P502ui-B1 / Sony 50W700B LCD
Sony S790 / Panasonic BDT-220 / Roku 2 XS & Roku 2
Samsung F550 / Speakercraft CS3 / Yamaha YAS-105