The only constant thing in life is change. This one-liner is relative to technology, among many other things. When it comes to technology, it seems that gadgets and devices are changing and advancing so rapidly that current versions are obsolete in just a few months. This is true in the case of TVs. TV sets are disposed of in under three years because people want to get the newest and latest technology. It doesn't matter if their TV works fine. They simply want the newest and best. So, just how often should you buy a new TV? (In a sensible timeframe, of course!) To answer that question let's take a look at some of the factors that could signal the need to buy a new TV set: Regulatory guidelines- This refers to a change in the law that could render your TV set redundant. A case in point is when transmission of TV signals changed from analog platform to digital platform. In reality this meant that you either purchased a decoder or better still a TV set that could receive a digital signal. Efficiency- The refers to energy consumption. While you might think that changing from a CRT television set to an LED set would not make a difference in your power bills, the truth is that it will. If you think that the saving is marginal then you might need to consider the differences in cost over time. If this doesn’t register for you then think about your role in reducing your carbon footprint. Tech trends- If you are into trends, it goes without saying that a major factor in your decision to buying a new TV set will be determined by this. If you do not care about the latest technology, then the newest TVs will not be of greatest importance to you. The question is where do you fall in these two groups? Common sense- Unless you have a lot more money than you know what to do with, it does not make sense to purchase a TV more than once every few years. Put in another way, your purchase of a TV set should be determined by logic.