"54 activists were injured, dozens of people were hospitalized," the channel said.
For its part, the Ministry of Interior of Lebanon reported on 20 injured police officers.
According to a correspondent for the channel, clashes between protesters and law enforcement occurred again after a smoke grenade was thrown at the crowd.
Protesters began throwing stones at police cords.
In turn, security officers used tear gas against protesters.
Clashes between protesters and security forces began at 5:00 p.m. local time (3:00 p.m. GMT) on Saturday after a group of activists tried to access the Parliament building.
The clashes in which stones, rubber batons and tear gas were used lasted several hours.
Activists from other Lebanese cities were mobilized in downtown Beirut to support protesters in the capital.
Shortly before there were clashes between the police and supporters of Shiite parties who tried to make their way to the central Martyrs Square, where peaceful protesters congregated, and destroyed their tents.
The situation stabilized after the arrival of reinforcements and negotiations.
Protests began in Lebanon on October 17 and continue despite the resignation of the Government.
Protesters continue to put pressure on the country's leaders, demanding to form a new Cabinet of Ministers and effect effective political and economic reforms.