The best way to get started is to watch the tutorial.
BoinxTV comes with professional looking Templates that help you get up and running quickly. In addition, various how-to screencasts including a short overview help you learn all common tasks. All how–to documents can be accessed via the BoinxTV Help menu, the overview screencast can also be found in the Extras folder of your BoinxTV installer disk.
BoinxTV can use various visual inputs like video cameras, microphones, and pre‐recorded material like movies and sound clips. They are organized in the Source Repository. You can use those inputs in any number of Layers that can be placed on top of each other, toggled on and off and interactively controlled. Simple layers are a fullscreen display of a video camera (Placer), other layers like a ticker tape, a Station Logo, Lower Third and others can be placed on top of that. Interactive control means that important aspects like a movie, its title, the caption of a lower third and such can be changed at any time while the show is being recorded/broadcast.
Two basic concepts are important for understanding how BoinxTV works: Layers and Settings.
Now build your show by dragging layers from the layers repository on the bottom into the layers stack in the middle. Or just use one of the templates as a starting point.
Select a layer in the middle column. Each layer comes with its specific parameters. The current layers are examples that give you an idea of what is possible. Layers can be customized and created by using Quartz Composer.
You can always see the result of the selected layer drawn in the left hand preview. The right hand preview shows you the current LIVE image, this is what would be recorded or rendered to an external screen.