Link: http://wgsf.oldgleaner.com/

Digital Television

Analog-to-digital transition
Congress passed legislation on February 12,2009, changing the date for the termination of analog broadcasts of over-the-air television from February 17, 2009 to June 12, 2009.

Television Channel Listings
Central Ohio Television
(As known on February 12, 2009)

WCMH-TV 4 NBC 14 - WCMH-DT COLUMBUS, OH
WCMH-TV will delay the switch to digital television to June 12, 2009.
Listing DT channel (virtual) 4 and 4.1 for programming

WSYX-TV 6 ABC 13 - WSYX-DT COLUMBUS, OH
WSYX-TV 6 will delay the switch to digital television to June 12, 2009.
Listing DT channel (virtual) 6 and 6.1 for programming

WBNS-TV 10 CBS 21 - WBNS-DT COLUMBUS, OH
WBNS-TV 10 will delay the switch to digital television to June 12, 2009.

WHIZ-DT 18 NBC 40 - WHIZ-DT ZANESVILLE, OH
FCC: Licensee/Permittee has obtained FCC approval to terminate its analog service prior to the transition date.THE ANALOG SERVICE WAS LOST ON 07/25/2008 DUE TO THE FAILURE OF A POWER COMBINER . . . . ANALOG SERVICE WILL NOT BE RESTORED.

WTTE-TV 28 Fox 36 - WTTE-DT COLUMBUS, OH
WTTE-TV 28 will switch to digital television February 17, 2009.

W31AA (Low Power) Newark, OH Translator for WOSU-TV 34 Columbus PBS
Low power stations have the option to continue in analog. The W31AA translator currently retransmits the WOSU-TV 34 analog signal, which will cease on June 12, 2009.

WOSU-TV 34 PBS 38 - WOSU-DT COLUMBUS, OH PBS
WOSU-TV 34 will delay the switch to digital television to June 12, 2009.
In addition to WPBO (Portsmouth, OH), the station has two repeaters: W31AA in Newark, and W47AB in Mansfield.
W47AB, located within the Cleveland DMA, serves north central Ohio.
W31AA broadcasts on a frequency previously used by WGSF (TV); the repeater signed on July 1, 1976, the day after WGSF closed down.

WSFJ-TV 51 24 - WSFJ-DT COLUMBUS, OH
After the analog television shutdown scheduled for February 17, 2009 [1], WSFJ-TV will remain on its current pre-transition channel number, 24 [2] using PSIP to display WSFJ-TV's virtual channel as 51.

WWHO-TV 53 46 - WWHO-DT Chillicothe/COLUMBUS, OH
WWHO-TV 53 will switch to digital television February 17, 2009.

NOTES: There is a good list of television stations in Ohio at Wikipedia, the free encyclopedia
Broadcast television stations serving cities in the U.S. state of Ohio.
"Northern Ohio Amateur Radio Development" is another source that I have found for television channel information.

. . . .Note: The Wikipedia listing also has Defunct stations in Ohio, and low power stations listings.
They use identifiers and sort buttons by:
VC refers to the station's PSIP virtual channel. 09 refers to the station's physical RF channel from 2009.

From Wikipedia, the free encyclopedia

"The Program and System Information Protocol (PSIP) is the protocol used in the ATSC digital television system for carrying metadata about each channel in the broadcast transport stream of a TV station and for publishing information about television programs so that viewers can select what to watch by title and description."
To learn more about the Virtual Channel and PSIP, got to the article on Wikipedia.