Today the public broadcaster TRT has 11 national television channels: TRT 1 (general), TRT 2 (culture and art), TRT 3 (youth channel with sports and music programs and live broadcasts from the Grand National Assembly of Turkey at specific hours), TRT 4 (education), TRT Müzik (wide range of music from traditional Turkish music to jazz). It also broadcasts a regional channel TRT GAP for the southeastern region of Turkey, and two international channels TRT Türk for Europe, USA and Australia, and TRT Avaz for the Balkans, Central Asia and Caucasus. A full-time Kurdish-language channel, TRT 6 , was launched in 2009 within the democratization process. 
Other significant adverse effects of testosterone supplementation include acceleration of pre-existing prostate cancer growth in individuals who have undergone androgen deprivation; increased hematocrit , which can require venipuncture in order to treat; and, exacerbation of sleep apnea .  Adverse effects may also include minor side-effects such as acne and oily skin, as well as, significant hair loss and/or thinning of the hair, which may be prevented with 5-alpha reductase inhibitors ordinarily used for the treatment of benign prostatic hyperplasia , such as finasteride .  Exogenous testosterone may also cause suppression of spermatogenesis , leading to, in some cases, infertility.  It is recommended that physicians screen for prostate cancer with a digital rectal exam and prostate-specific antigen (PSA) level before starting therapy, and monitor PSA and hematocrit levels closely during therapy. 
Nazem Bassil 1 , Saad Alkaade 2 , John E Morley 1,3 1 Division of Geriatric Medicine; 2 Internal Medicine, Saint Louis University Health Sciences Center, St. Louis, Missouri, USA; 3 GRECC, VA Medical Center, St. Louis, Missouri, USA
Abstract: Increased longevity and population aging will increase the number of men with late onset hypogonadism. It is a common condition, but often underdiagnosed and undertreated. The indication of testosterone-replacement therapy (TRT) treatment requires the presence of low testosterone level, and symptoms and signs of hypogonadism. Although controversy remains regarding indications for testosterone supplementation in aging men due to lack of large-scale, long-term studies assessing the benefits and risks of testosterone-replacement therapy in men, reports indicate that TRT may produce a wide range of benefits for men with hypogonadism that include improvement in libido and sexual function, bone density, muscle mass, body composition, mood, erythropoiesis, cognition, quality of life and cardiovascular disease. Perhaps the most controversial area is the issue of risk, especially possible stimulation of prostate cancer by testosterone, even though no evidence to support this risk exists. Other possible risks include worsening symptoms of benign prostatic hypertrophy, liver toxicity, hyperviscosity, erythrocytosis, worsening untreated sleep apnea or severe heart failure. Despite this controversy, testosterone supplementation in the United States has increased substantially over the past several years. The physician should discuss with the patient the potential benefits and risks of TRT. The purpose of this review is to discuss what is known and not known regarding the benefits and risks of TRT.
Keywords: hypogonadism, testosterone replacement therapy, erectile dysfunction, osteoporosis, cardiovascular disease