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SacramentoStocktonModesto, California
United States
CitySacramento, California
ChannelsDigital: 21 (UHF)
Virtual: 29
Affiliations29.1: Ion Television (O&O)
29.2: Court TV
29.3: Laff
29.4: Bounce TV
29.5: Defy TV
29.6: TrueReal
29.7: Newsy
OwnerIon Media
(a subsidiary of the E. W. Scripps Company)
(Ion Television License, LLC)
First air date
August 27, 1990 (31 years ago) (1990-08-27)
Former call signs
KRBJ (February–March 1985)
KCMY (1985–1998)
KSPX (1998–2009)
Former channel number(s)
29 (UHF, 1990–2009)
48 (UHF, until 2020)
Independent (1990–1998)
Qubo (until 2021)
Ion Plus (until 2021)
Ion Shop (until 2021)
QVC (until 2021)
HSN (until 2021)
Telemundo (via KCSO-LD on 33.2) (2014–2021)
Call sign meaning
Sacramento's PaX TV
Technical information
Licensing authority
Facility ID52953
ERP1,000 kW
HAAT444.6 m (1,459 ft)
Transmitter coordinates
38°14′50″N 121°30′7″W / 38.24722°N 121.50194°W / 38.24722; -121.50194
Public license information

KSPX-TV, virtual channel 29 (UHF digital channel 21), is an Ion Television owned-and-operated station licensed to Sacramento, California, United States. The station is owned by the Ion Media subsidiary of the E. W. Scripps Company. KSPX-TV's studio is located on Prospect Park Drive in Rancho Cordova, and its transmitter is located at TransTower in Walnut Grove.


The station first signed on the air on August 27, 1990 as KCMY; it originally operated as the area's Home Shopping Club affiliate[1] before joining the InfoMall TV network in the mid-1990s.

In 1995, then-CBS affiliate KXTV agreed to provide some programming to KCMY in order to give it more of a competitive edge in the Sacramento market. KCMY began airing the tabloid show Geraldo at 10 p.m. as well as the KXTV-produced health magazine show Pulse.

Paxson Communications (now Ion Media) purchased the station in 1998, changing its call sign to KSPX. The station became a charter owned-and-operated station of its new Pax TV network (later i: Independent Television and now Ion) on August 31, 1998.

Technical information[edit]


The station's digital signal is multiplexed:

Channel Video Aspect Short name Programming[2]
29.1 720p 16:9 ION Ion Television
29.2 CourtTV Court TV
29.3 480i Laff Laff
29.4 Bounce Bounce TV
29.5 DeFy TV Defy TV
29.6 TruReal TrueReal
29.7 NEWSY Newsy

In 2014, KSPX began simulcasting Telemundo affiliate KCSO-LD on digital subchannel 33.2. The simulcast was discontinued in October 2021.

Analog-to-digital conversion[edit]

KSPX shut down its analog signal, over UHF channel 29, on June 12, 2009, as part of the federally mandated transition from analog to digital television.[3] The station's digital signal remained on its pre-transition UHF channel 48, using PSIP to display KSPX-TV's virtual channel as 29 on digital television receivers.

Reduced power operation[edit]

On August 30, 2019, the station temporarily reduced power, per special temporary authority (STA), from 1,000 kW to 4.3 kW to accommodate relocation of its transmitter site.

Power was increased to 48 kW on November 16, 2019. Another increase to 388 kW took place on April 29, 2020. The completion of the main facility and subsequent increase to 1,000 kW took place later in 2020.[when?]


  1. ^ Vierria, Dan (1998-08-31). "Pax TV Debuts as a Network for Families: New Programing Bumps Shopping Off Channel 29". The Sacramento Bee (via NewsBank).
  2. ^ RabbitEars TV Query for KSPX
  3. ^ List of Digital Full-Power Stations Archived 2013-08-29 at the Wayback Machine

External links[edit]