Final answer:
The TV Tuner Card allows you to connect a broadcast signal to your computer and display it on the monitor.
Step-by-step explanation:
The expansion card that allows you to connect a broadcast signal to your computer and display the output on the computer monitor is the TV Tuner Card. This card enables your computer to receive and decode television signals, allowing you to watch live TV on your computer.
A TV Tuner Card has ports specifically designed for connecting broadcast signals, such as Cable TV or an antenna, to your computer. It converts the analog or digital signal into a format that can be displayed on your computer monitor.
By installing a TV Tuner Card in your computer, you can enjoy watching TV shows, movies, and even record them for later viewing, all on your computer.