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DTMF signaling for insertion points of commercials between local cable networks and the uplinks of the main? feed. Computers decoded this and handled them. They were phased out mainly because they were so annoying.

As a method of in-band signaling, DTMF tones were also used by cable television broadcasters to indicate the start and stop times of local commercial insertion points during station breaks for the benefit of cable companies. Until better out-of-band signaling equipment was developed in the 1990s, fast, unacknowledged, and loud DTMF tone sequences could be heard during the commercial breaks of cable channels in the United States and elsewhere.




(http://imgsrc.ru/astroboy700/48280226.html)


TRACK LIST

01 [0:01 sec] CNN [1982][in-band signaling] [DTMF tones]
02 [0:00 sec] NICKELODEON[1984][in-band signaling] - DTMF [mixed & rapid pulse tones
03 [0:00 sec] ESPN[1987][in-band signaling] DTMF tone
04 [0:27sec ] SMPTE test sound [Stereo]
05 [0:19 sec] EAS [1988] Emergency Alert System
06 [0:18 sec] PBS [1971- 1985] logo sound#1[mono] PBS#2[stereo]
07 [0:04 sec] NBC [1953] I.D Sound
08 [0:19 sec] ABC Network [1963]'This an ABC color presentation'
09 [0:13 sec] NBC [1968]'In Living Color' It just starts in black and white
10 [0:06 sec] NBC [1968]'The following program is brought to you in living color'
11 [0:07 sec] NBC [1975]'Now a special program in living color'
12 [01m:08s ] ABC [1961] ABC's Wide World of Sports
13 [0:15 sec] ESPN[1987] Sports Center Presentation
14 [0:59 sec] HBO [1981] Feature Presentation Music (Stereo)
15 [0:05 sec] HBO [1982] Pay television content descriptor
16 [0:17 sec] HBO [1980][in-band signaling] DTMF + Subscription Television
17 [0:22 sec] HBO [1984 HBO Movie Presentation
18 [0:32 sec] NBC [1985-2004]NBC Nightly News open (John Williams)
19 [01m:53s ] NBC [1977-1979]NBC Nightly News Theme (Henry Mancini)
20 [2m:43s ] ABC [1975-76] This Week in Baseball Theme - Gathering Crowds (John Scott)
21 [0:31 sec] CBS [1968-Present] 60 Minutes (ticking clock)
22 [0:18 sec] Hanna-Barbera[1979] Swirling Star[mono & stereo]

OPENLINK: https://mega.nz/#!v1dBSRxB!1Pb15SK-Z1xhvwcjUlru_NV5RY6uHuVCgI5ZWlLOr6E

Thanks for this...looking forward to it! :)

Thanks!

Heh :) this sounds interesting. As does the composers. I'll give it a try, thanks

Thank you for your work on this project. :)

Very nice! We need more of this stuff! This one's worth it just to hear the '81 HBO theme in stereo.

Thanks a lot, very interesting post!

Thanks so much!

Thanks for the share...

thank you

Thanks so much!

Thank you very much. How about a compilation of Movie of the Week, Late Night Movie or Saturday /Sunday Afternoon movie intros and others, would be fun.

nice work! thanks astroboy

Many thanks astroboy700 for sharing your interesting project TVCOM - Television's memorable sounds & signals (1953-1979) ;-) Rated thread: excellent! ;-)