The LN52A750 is a 2008 model, which doesn't have Internet@TV, or the wigets.
The Internet@TV is a feature of the 2009 models.
I apologize for the inconvenience, but it's not possible to load the new widgets into last year's models of televisions.
I'm hoping someone from Samsung can answer this...
I've been reading about the new feature that allows any model LED or LCD Series 6 (650 models) and above to use the Internet@TV feature and a television hooked up to an ethernet connection to both update firmware and download the Yahoo Video and Amazon Video Rental content.
I have a LN52A750 with the most current firmware (from October 2008) connected to my home network and I see no option in any menu screen to do this.
WHY? Is there a firmware upgrade somewhere that will provide this functionality to my television? Why, with an ethernet connection, wouldn't my TV be able to do this as long as it has the right software on it? I've copied the information below directly from the following link: http://www.samsung.com/us/consumer/learningresources/medi2.0/internet_introduction.html
Benefits of Internet@TV1