One of the best ways to purchase a 42-inch TV under Rs. 50,000 is by online shopping. However, before taking the plunge, there are certain factors that you must consider when buying a large size TV such as 42-inches. First and foremost, decide whether you want a Smart TV or a non-smart TV. You can even categorize your choice based on the features. Also, keep an eye on the resolution, since a big size TV without adequate resolution does not serve the purpose. Once you have finalized your choice, compare the prices and features on web portals, like Amazon, Flipkart, Tata CliQ, and others. Then you can buy it online by placing the order on the store that is offering the lowest price.