TV is associated to entertainment to such an extent that sometimes it is difficult to distinguish between a news program and a comedy show. However, some people take issue of this and argue that these programs should be rather used to for the sake of people's education.
On the one hand, TV is supposed to bring joy and prevent from everyday boredom. News anchors are handsome, a short time is given to each piece of news so as to dynamise the program and so on. Everything seems to indicate that the need for this kind of programs was born from people's need to evade themselves from routine. On top of that, broadcasted news is not the ideal format for high quality journalism, since this is often more detailed and serious.
On the other hand, news programs' popularity means that they are a powerful means to connect with the outside world. Through them, children are exposed to a huge amount of information and this information should be selected wisely. In addition, it goes without saying that the way journalism is managed reflects society's priorities. Also, news programs are a formal tool to fight against lies and political scandals inasmuch as they shape people's thinking.
In conclusion, there seem to be good reasons to think news programs should be either entertaining and informative. Therefore, the most reasonable conclusion is that they should be both.