MSN TV (formerly WebTV) is the name of both a thin client which uses a television for display (rather than a computer monitor), and the online service that supports it.

The product and service was developed by WebTV Networks, Inc., a company purchased by Microsoft Corporation and absorbed into MSN (the Microsoft Network). While most thin clients developed in the mid-1990s were positioned as diskless workstations for corporate intranets, WebTV was positioned as a consumer device for web access.

The WebTV product is an adapter that allows a television set to be connected to the Internet, primarily for web browsing and e-mail. The setup includes a web browser, a corded or wireless (e.g., bluetooth or IRDA) keyboard and a connection, using a modem, ADSL, cable Internet access, or power line communication.

While WebTV does not allow as much functionality as a computer-based web browser, it is a low-cost alternative to a traditional computer connection to the Internet.

Co-founder Steve Perlman is credited with the idea for the device. He first combined computer and television as a high-school student when he decided his home PC needed a graphics display. Then, he went to build software for companies such as Apple and Atari. While working at the Apple spin-off, General Magic, the idea of bringing TVs and computers together resurfaced.