Things to keep in mind are: how much of a buffer you have and how many panels/pages make up a reasonable update for you.
I would recommend this. If you have longer episode, you can get away with updating monthly. Shorter episodes, you can do weekly.
The more updates you have the more often you'll show up in new category for readers looking for recently updated stuff.
Generally, I say work within the means of your buffer, give yourself enough time to make your episode, and update consistently; meaning whatever schedule you pick, keep on schedule.
