Write a killer script. Include all camera angles and directions. A single script page equals around 1 minute of film. Each episode should fall into the 3 to 10 page/minute range.
Find actors. Whether you're working with aspiring actors from a local community college, or your friends, make sure everyone has a copy of the script. Instruct all actors to memorize their lines.
Set up your scenes. For low budgets, it is best to use locations that you have free access to, like your home or place of business (if you have permission).
Consider shooting your webisode with multiple digital camcorders. Having more than one camcorder will allow you to choose various angles and shots for each scene.
Edit the video in your digital video editor. Most camcorders come with some sort of video-editing software. Make sure that the audio matches up with the actor's lip movements, and that the camera shots are correct. Remove any excess noise from the video and add background music.
Upload your TV show to websites like YouTube. Be sure to copy the URLs where you upload your episodes.
Advertise your TV series. Send links to family and friends, and post the URLs on filmmaker discussion boards.
Upload new episodes of your TV series on a regular basis.