I have done a lot of television. Some were filmed projects, and others were interviews. With the filmed projects, they were done similarly to films, only quicker. The interviews were done much quicker, consisting of a few minutes to maybe a half hour. When doing television, you kind of know who the target audience will be. Movies could be seen by a wide range of people. Television is more specific.
When I did educational programs for 8th grade History classes, we knew who would see it. The filming was professional but shot only in a couple of days. There were some continuity issues, but we figured that 8th graders probably wouldn't see them. If it has been a movie, those issues might have been fixed or maybe not. Another educational show I was involved in was quite rigorous, because it was being filmed for a wider audience. The continuity was grueling and meticulous, but it had to be that way for accuracy. The filming also went on for a couple of weeks, because it was like a TV movie. Had it been a movie, a couple of weeks would have turned into a couple of months. The key to doing that kind of TV is to know to do the same thing in the same way, much like movies. You don't want to show up on a blooper reel years later.
Interviews are a lot harder. If it is a short interview, you had better know the points you want to make and anticipate the questions posed to you. A successful interview will work if there is some chemistry between the two parties. It also works, if the interview is edited by the interviewer before broadcast. However, there are times when that is not possible. Live interviews or live to tape are the hardest. You still have points in your mind about what you want to say, but the interviewer might throw you a curveball and ask something you had not prepared for. Thinking on your feet (or in a chair) is hard, but you can't panic. You take a breath and then answer the question. Hopefully, it will sound okay. In one interview, they had told me the subjects that would be covered. I had time to think about my answers. Then, right before closing the interview, they asked me a question that I had not prepared for. I couldn't just blow it off, so I came up with a profound answer. At least, they thought so. My relaxation techniques worked very well in that situation.
Just as in film, you can't think about how many people would see you on TV. Just do your job, and everything will fit into place. I am ultra-critical about what I do or say on TV, films or plays. That is how I get better. No matter how many accolades I can get from an audience, I know I can always be better. I am a perfectionist. That can be good or bad. The key is to learn from the bad and accept the good. And maybe, your ego won't be so big that you can't fit it in a room, like mine used to be.