Can I use an HDTV as a computer monitor?

Episode 1151 (1:52:35)

Joe from Havre de Grace, MD
Dell Monitor

Joe wants to get a new monitor for his desk to connect to his MacBook Air. Would a TV be a cheaper and better option? Leo says not at all. A computer monitor is a far better, and sharper option. TVs were made specifically for television, which isn't as demanding as a computer screen. Dell has great monitors for $300.