What is PB and PR in TV?

Related questions

1. Is there such a thing as a Scart to HDMI cable?
2. Is HDMI better than Scart?
3. Can I convert a scart lead to HDMI?
4. Is Scart dead?
5. Is Scart still used?
6. What if my TV doesn't have a scart socket?
7. Does Scart transmit sound?
8. Are Scart cables obsolete?
9. Does scart support HD?
10. Is there a Scart to HDMI converter?

Tags

1. #maintained
2. #because
3. #earlier
4. #signal
5. #analog
6. #single
7. #separately
8. #three
9. #provided
10. #ypbpr
11. #designation
12. #composite
13. #equipment
14. #brightness
15. #color
16. #quality
17. #cables
18. #connection
19. #commonly
20. #components
21. #higher
22. #component
23. #cable
24. #video
25. #signals