nowadays more and more programs are shown every day. my favorite program is "discovery" which is broadcasted by cctv at 5'clock every other afternoon, except weekends. the program provides us with knowledge in natural and scientific aspects. i like to know about the secrets of animals and some scientific research. i acquire some knowledge about nature and science of the past, present and even the future. it is an interesting as well as instructive program. besides, the pictures are very vivid and beautiful. it’ s really a great joy to watch it. ifyou don’t believe what i said, just watch it by yourself. and then you will know i am right.