31. For each hour in a broadcast day , advertisements take up a fairly large portion of the time. 32. In 1983 Salem leased the entire broadcast day except from 6 AM to 9 AM to Radio Vision. 33. CBC Television and Newsworld are apparently the only broadcasters in the world required to caption the entire broadcast day . 34. Finally, a 10 : 00 PM live newscast followed by a classic film would finish the broadcast day . 35. Anoai remains the longest serving news anchor her voice is often heard during the ending of each broadcast day . 36. The commercials, produced in-house, run most often in the cheaper wee hours of the broadcast day . 37. At other times in the broadcast day , affiliates were free to offer local programming and sell advertising time locally. 38. WPBT's broadcast day increased further after the formation of the Public Broadcasting Service ( PBS ) in 1970. 39. WMSB was on the air for 30 percent of the broadcast day , but WILX had all of prime time. 40. The network began its broadcast day at 7am in Mexico City, but at 4pm in the rest of Mexico.
