question: What are the three HDTV parameters ?
answer: -LSB- frame size -RSB- -LSB- scanning system -RSB- -LSB- frame or field rate -RSB-
turker_answer: The three HDTV parameters are -LSB- frame size -RSB- -LSB- scanning system -RSB- -LSB- frame or field rate -RSB- .
rule-based: The three HDTV parameters are -LSB- frame size -RSB- -LSB- scanning system -RSB- -LSB- frame or field rate .