Fans abbreviate shows they love for a few reasons. One could be that they talk about the show so much that an abbreviation becomes easier to use. Another is because it makes the show feel more personal. Popular abbreviations for me include Spn, GG, DW, BtVS, FF, and many more.
I see that you have a new show about models. First of all, I watched it and it really isn't that great. Secondly, it REALLY bothers me that you named it The Beautiful Life: TBL. It seems like you're trying too hard to make it popular. Also, calling it The Beautiful Life: TBL is reduntant and makes you look stupid because you are basically calling it The Beautiful Life: The Beautiful Life. So yeah. Maybe you should rethink that.