Okay, the user wants me to translate "high-def television" into Traditional Chinese. Let me start by understanding the term. "High-def" is short for high definition, which in Chinese is usually translated as 高清. Then "television" is 电视. So putting it together, it should be 高清電視.
Wait, I need to make sure there's no existing Traditional Chinese version. Since the original term is in English, it's not already in Traditional Chinese, so I need to translate it. Let me check if there's a standard translation for "high-def television" in Chinese. Sometimes technical terms might have specific translations. For example, "high definition television" is commonly known as 高清電視 in Chinese media.
I should confirm that "high-def" is indeed abbreviated as 高清. Yes, in Chinese, 高清 is the standard term for high definition. So the translation should be 高清電視. No need for any additional explanations, just the translation result as per the user's request.