To repair a crack on a LCD screen, visit the television manufacturer's service center or a nearby TV repair shop. Optionally, repair the TV at home.
When visiting a service center, make sure to take along the warranty card and purchase receipt of the TV. Additionally, take note of the model number and the serial number of the TV. Free or charged service depends upon whether the warranty applies or not and the severity of the crack. TV repair shops may not repair the cracked screen if the cost is more than buying a new TV. Another option is to repair the TV at home referring to self-help videos online.