Over at the Roku Blog RokuChris has posted a set of "Hello World" tutorials for the Roku using different components. For anyone that understands Part 4 of my tutorial set, they shouldn't be too hard to fully grok.
These are different that my tutorials in that they use different components that are more likely to be in use in the average video streaming channel. My tutorials are aimed more at using one component that has a lot of variability to examine the language and give people a solid start on the language.
In any case, if you've been following my tutorials, I advise you take a look!