The best replacement for rca is s-video.

The best alternatives to rca are rated as following:
★★★★★  s-video
★★★★★  component
★★★★★  optical
★★★★★  xlr
★★★★  hdmi
★★★★  vizio
★★★★  coaxial
★★  westinghouse
★★  insignia
★  component cables
★  rgb
★  3.5mm
★  sanyo
★  sharp
★  trs
★  xlr better
★  westinghouse tv
★  vizio tv
★  vga
★  digital coax
★  optical audio
★  optical audio cable
★  bnc
★  coax
★  cca
  av
  component cable
  composite
  s video
  toslink
  aux
  sceptre
  spdif
  component video
  hdmi audio
  phillips
  jvc
  clip cord
  samsung tv
  1 4
  optical better
  wac
  phillips tv
  magnavox
  balanced xlr
  sceptre tv
  scart
  jvc tv
  speaker wire

Your alternative for rca is not listed? Suggest!
Speaking about rca, one probably shouldn't forget about hdmi.

Other search terms related to rca and their ratings are:
★★★★★ hdmi
★★★★★ speaker wires
★★★★ remote wire
★★★★ stent
★★★ s-video
audio jack
You have in mind a companion for rca and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of rca in all years. Click on graph for more.
rca
s-video
component