Section 73.4163 - Noncommercial nature of educational broadcast stations(a) See Second Report and Order, BC Docket 21136, FCC 81-204, adopted April 23, 1981. 86 FCC 2d 141; 46 FR 27944, May 22, 1981.(b) See Order, BC Docket 21136, FCC 82-327 adopted July 15, 1982. 90 FCC 2d 895; 47 FR 36171, August 19, 1982.(c) See Memorandum Opinion and Order, BC Docket 21136, FCC 84-105, adopted March 28, 1984. 97 FCC 2d 255; 49 FR 13534, April 5, 1984.(d) See, Public Notice, FCC 86-161, dated April 11, 1986. 51 FR 21800, June 16, 1986. Excerpt reprinted at 7 FCC Rcd 827.(e) See Memorandum Opinion and Order, FCC 90-111, adopted March 28, 1990. 5 FCC Rcd 4920.47 FR 54448, Dec. 3, 1982, as amended at 51 FR 26251, July 22, 1986; 59 FR 52087, Oct. 14, 1994