WATM-TV (channel 23) is a television station licensed to Altoona, Pennsylvania, United States, serving as the ABC affiliate for the Johnstown–Altoona–State College market.

It is owned by Palm Television, L.P., which maintains a local marketing agreement (LMA) with Cunningham Broadcasting, owner of Johnstown-licensed Fox affiliate WWCP-TV (channel 8), for the provision of certain services.

Both stations, in turn, are operated under a time brokerage agreement (TBA) by Sinclair Broadcast Group, owner of Johnstown-licensed dual NBC/CW+ affiliate WJAC-TV (channel 6).

Since WATM-TV's signal is barely viewable in Johnstown, it is simulcast in high definition on WWCP-TV's second digital subchannel (8.2) from a transmitter along US 30/Lincoln Highway, in Ligonier Township, near the Somerset County line.

The station was unable to afford a network feed, so for most of its history, engineers simply switched to and from the signal of WTPA-TV (now WHTM-TV) in Harrisburg.

Complicating matters, Scranton's WNEP-TV had long operated two outlying translators (one presently) in State College, the second-biggest city in the area.

It had originally been slated to be a Pittsburgh station, but its owners petitioned the Federal Communications Commission (FCC) to move the license to Johnstown.

At the time, WHTM and WTAE both preempted moderate amounts of ABC programming and it soon became obvious that Johnstown–Altoona–State College needed its own affiliate.

However, WATM is still managed by WWCP under a local marketing agreement as Peak Media, channel 8's former owner, feared that if allowed to operate separately both stations would be put in jeopardy of going dark.

In November 2010, it was announced that Horseshoe Curve Communications would acquire Peak Media's assets including WWCP and its fourteen-year-old agreement to operate WATM.

Sinclair Broadcast Group, who already owns NBC affiliate WJAC-TV, was to assume operations of both WATM and WWCP through shared services and joint sales agreements.

Despite a valid attempt to gain enough market share, these broadcasts barely registered as a blip in the Nielsen ratings against longer-established WJAC and WTAJ-TV that offered market-wide coverage.

Due in part to continual ratings struggles and low viewership, WATM's separate news department was shut down in December 2002 and merged with WWCP.