I just discovered Alias and my wife and I have been watching episodes back to back. The show does a good job of making the contents of various displays legitimate. In one scene, the 'tech guy' (Marshall) has to build some source code - and I saw various familiar libtool/autoconf symbols scroll by.
It's been years since I've seen it, but I remember a hilarious scene where Jack Bristow is talking to someone in an IM-like window; his choice of text is giant red Comic Sans and his messages are devoid of grammar and punctuation.
You could argue that this is typical of the average IM user in the early 2000s, but it seemed incongruous for the character.