Yes, there are chances that your Smart TV may hang or crash like a computer or smartphone.
It happens because a Smart TV pull contents from the web via wireless or wired medium also runs media-centric applications and allows you to play HD games.
In simpler words, the processor inside your Smart TV manages all connected peripherals and also includes voice-based commands, which sometimes create crashes or laggy performance.
However, these issues can be fixed with OTA updates and other software integration.