How to watch videos from iPhone to tv?

Ok so I got a composite cable to connect my iPhone to my tv to watch stuff like bbc iplayer and sky go and live streams but when connected I only get sound no picture. It works fine when playing videos from apple default video app.
So how can I get other video apps to work?

I have an iPhone 4. Should I upgrade to iOS6?

I've heard a lot of different things: It takes up a lot of battery life and memory, the phone works slower, the volume while talking on the phone doesn't work, the app store is slow and it doesn't show all of the search results, and the apple maps sucks. The good things I've heard is there's no Wi-Fi needed for FaceTime and there's a do not disturb feature. What have been your experiences with the new upgrade and is it worth upgrading?

Should I get 16gb or 32gb for iPhone 5?

I currently have an iPhone 3GS, with only 8gb of space. I have about 850 songs, which takes up about 70%. I have a lot of pictures, and when I travel or go out I take a lot, so about 300 pictures since I first got the phone in 2010. That takes up about another quarter. I only have about 8 apps, I'm not really an "app" person so the most I'd ever have would probably be like 10-15.So basically I'm wondering, when I upgrade, should I get the 16gb or 32gb? I'm leaning towards 32 because I'm going to have it for the next few years and will of course be adding new music and pictures all the time. But the extra space is a lot of money, I'm just wondering if it's worth it! What do you think?

Added (1). Also I wouldn't watch movies or download music videos.

Does the iphone 5 need a scratch guard?

Due to its gorilla glass display i hav seen in many youtube videos that the iphone 5 display remains uneffective to scratches. Is it true? Will it need any scratch guard or screen protector?

How to put mp3 files onto my iphone?

I used to be able just to drag them to the Music section on itunes for my iphone and they would transfer but now it isn't letting me, does anyone know another way around it?

How to edit MS Word documents on iPhone?

I'm working on a writing project. I use my laptop at home, iPhone on the go, and my work computer during breaks. I currently use Dropbox. Is there an app that allows you to view and edit dropbox files? How does this work?

Added (1). In other words, what is the best way to sync iPhone documents with PC, so I can work at home and on the go?

Added (2). In other words, what is the best way to sync iPhone documents with PC, so I can work at home and on the go?

Is it safe to pay for MineCraft with a credit card?

I've been dying to get minecraft. But my dad does NOT like to use his credit card to pay for anything I ask him to. I'm serious. It took a whole week for me to get access to the app store after I got my iphone. But I just want to know. Will minecraft (mojang) rip me off? Will it use my dad's credit card for other purposes?

How to find my Wi-Fi password?

I'm trying to find my Wi-Fi password to link my iPhone to the Wi-Fi network. I just don't know where the Wi-Fi password is. How do I find the Wi-Fi password? (This is on a Windows xp).

Is the keeper app on the iphone safe to use?

My friend told me about an app called keeper that lets you store all of your passwords. Since I have a lot of them, i think it would be a good idea to use it. Is it safe to use? If I put in my passwords, nobody in some other country can get them all right?