Editing Guiding Light (section)

===Production summary===
{| class="wikitable"
|+ Production summary
|-
! width=9% | Start date 
! width=9% | End date
! width=9% | Time slot<small><br>(ET/CT)</small>
! Run time<small><br>(minutes)</small>
! Network 
! Filming<br>location
! Notes
|-
| January 25, 1937 || October 13, 1939
| rowspan="3" style="text-align:right;"| —
| rowspan="6" style="text-align:center;"| 15
| [[NBC Red Network|NBC Red Radio]]
| rowspan="3"| [[Chicago]]
| Canceled by [[Procter & Gamble]], resulting in 75,000 protest letters.<ref name="old-time">{{cite web |url=http://www.oldtime.us/phpBB3/viewtopic.php?f=9&p=1060 |title=The Guiding Light |work=The Original Old-Time Radio BBS |date=October 25, 2005 |url-status=dead |archive-url=https://web.archive.org/web/20110928025326/http://www.oldtime.us/phpBB3/viewtopic.php?f=9&p=1060 |archive-date=September 28, 2011}}</ref>
|- 
| January 22, 1940 || March 15, 1942
| {{nowrap|[[Blue Network|NBC Blue Radio]]}} || [[Sponsor (commercial)|Sponsored]] by [[Procter & Gamble]]
|-
| March 16, 1942|| November 29, 1946
| style="text-align:left;"| {{nowrap|[[NBC Red Network|NBC Red Radio]]}} || Canceled by [[General Mills]].<ref name="old-time" />
|-
| June 2, 1947 || 1949
| rowspan="3" style="text-align:right;"| 12:45 pm / 11:45 am
| style="text-align:left;"| {{nowrap|[[CBS Radio]]}} || [[Hollywood, Los Angeles|Hollywood]]
| rowspan="3" | {{nowrap| Sponsored by [[Procter & Gamble]]}}
|-
| 1949 || June 29, 1956
| [[CBS]]
| rowspan="7" style="white-space:nowrap;"| [[New York City]]
|-
| July 2, 1956 || September 6, 1968
| rowspan="6" style="white-space:nowrap;"| [[CBS|CBS Television]]
|-
| September 9, 1968 || September 1, 1972
| align="right"| 2:30 pm / 1:30 pm
| rowspan="3" style="text-align:center;"| 30
| rowspan="4" | —
|-
| September 4, 1972 || November 28, 1975
| align="right"| 2:00 pm / 1:00 pm
|-
| December 1, 1975 || November 4, 1977
| align="right"| 2:30 pm / 1:30 pm
|-
| November 7, 1977 || February 1, 1980
| align="right"| 2:30 pm / 1:30 pm
| rowspan="2" style="text-align:center;"| 60
|-
| February 4, 1980 || September 18, 2009
| align="right"| 3:00 pm / 2:00 pm
| As early as 1993, some affiliates began airing the show at 9:00 am, 10:00 am, or noon local time in favor of local programming airing at 3:00 pm on some CBS affiliates.
|}

The action has also been set in three different locales – it was based in the fictional towns of Five Points and Selby Flats before its final locale of Springfield.