Sayyidi wa sanadi Hazrat Mawlana Mufti Mohammad Taqi Usmani sahib db advised a mureed;
One should not keep a television set at home by choice. If some one else has kept it without you having any control over it then you will not be sinful.
Few of the scholars have squeezed out permissibility of watching programs that are being broadcasted live and do not contain anything objectionable as per Shariah. However, it is best to avoid watching them also.
Moreover, people seeing you watching live broadcast will not be able to appreciate this difference and deduce that you consider watching television to be permissible.
(Whereas, it is impermissible to watch the television.)