Depends on what you mean by the question. There are apps to view TV shows streamed from servers but if your question means to tune live TV then, no. An app can't replace a tuner.Is there any app that lets you watch tv
at some point you should be able to go to Netflix: Rent as many movies as you want for only $8.99 a month! Free Trial on your phone, log in and then watch movies. You can't now because they don't have a mobile site or due to flash issues I think.