My 'standard' 8 meg unlimited TTNET broadband comes in at 51.75 TL /month. The line rental with TurkTelecom (mainly for the broadband but occasional call) comes in at 17.50 TL/month.
I have a PAYG mobile, I can't get a monthly account service from Turkcell, but apparently I can with the alternative provider AVEA, costs are about 20TL per month on the PAYG (I am not a big user of the mobile).
TV I suggest you search the site for alternatives. I personally take the service from the UK using the 'unlimited' broadband service via a laptop or tablet nd connected to the TV, such as BBC Iplayer, CatchUp TV, ITV Player SkyGo etc. for which you'll also need a good quality VPN service which costs me $9.99 per month (and is useful for other non TV services).