Xiriak

I'm a fan of the movies featuring Fibber McGee and Molly, and have found two of the four movies that I know them to be in. The movies 'Here We Go Again' and 'Heavenly Days' are available in the TCM store. Unfortunately, I have been unable to find 'This Way Please' and 'Look Who's Laughing' anywhere. I'd really like to have a full set of movies with Fibber McGee and Molly, but don't currently know where to look. Any help finding the missing movies would be much appreciated.