False facts about the Soviet aggression against Lithuania on January, 13, 1991, were reported during the First Baltic Channel's broadcast "Man and Law" on October 4.
"The commission is calling on the FBC to apologize to the people of Lithuania over the spread of such information that might have offended their civic feelings," the watchdog said in a statement.
Following the broadcast, cable TV provider Cgates stopped the rebroadcasting of the Latvian-registered FBC.
The FBC's broadcast included an interview with Mikhail Golovatov, the then commander of the Alpha Group that stormed the TV Tower in Vilnius, and other people who denied the military attack.
Some 14 people were killed during an attempt by the Soviet army and special forces to take over the Vilnius TV Tower on January 13, 1991, and more than 1,000 unarmed civilians were injured.