
1) Like many NFL broadcasts 2) Like some TVs 3) Nice and clear, on TV 4) TV spec
Found on
https://www.crosswordclues.com/clue/hidef

HiDef (short for high definition), also called 24p, is a 24 frames-per-second digital video format for high-resolution capture of motion pictures. The 24 refers to the frame rate (24 frames/second) and the p stands for progressive scanning (as opposed to interlaced scanning). As of 2003, there are two 24p HD formats: Sony 24p and Panasonic 24p. Ca...
Found on
http://en.wikipedia.org/wiki/HiDef
No exact match found.