This is nothing new. These films have been available for years in the Media Room of the TCM website but I am not sure how many people are aware of them. So I thought I'd post them here. They are free and available to watch at anytime. I'm not sure about country restriction but these should be available for anyone in the U.S. at least.
I highly recommend Double Harness (1933). I have seen that film a couple times and it's a good pre-code starring William Powell and Ann Harding. Also, Topper (1937) is just a delight and I enjoyed Living on Love (1937) too.
I hope TCM will consider posting a few more of these in the future!
Update: I tried to embed all the movies on this page but it wasn't working. So I left up just one of them: Double Harness.