There is certainly booze on TK but if you choose them please remember that they are an airline from a Muslim country. They have as good a range of offerings as anyone else but what they do not do is push booze laden trolleys up and down the aisles. If you want a drink or a top up you need to say so. It will be served promptly and with a smile but if you don't ask you won't get. The only exception for whatever reason is with the post meal coffee service when there are liquers on the trolley and I find the crew always encourage Westeners to have one!