Dear Sir or Madam, I am a fan of your TV channel because of the quality of the programs and the excellent shows you broadcast most of the time. But, lately, some of the programs, which are being aired during the evening time, are becoming monotonous and sub-standard, to say the least.
Dear Sir or Madam, I am writing in regards to the evening programmes which are currently being telecast on your TV channel. As per the current schedule of the evening slot, most of the programmes are dull and less exciting.