I suppose it's a reasonable first effort, and I don't know if the abilities missing can be corrected. The skill allows you to "launch" some channels (Direct TV, PBS, Amazon Prime) but not others (Tubi, Filmrise, The Roku Channel). Once a channel is launched, I couldn't find a way to navigate within the channel so it was back to the remote. While viewing DirectTV, for example, when I asked to watch "ABC", or view the guide, Alexa was stumped.
Amazon's Alexa is the voice-activated, interactive AI bot, or personal assistant, that lets people speak with their Amazon Echo, Echo Dot and other Amazon smart home devices. Like Siri and Cortana, Alexa is designed to respond to a number of different commands and even converse with users. Alexa comes with more than a few capabilities: playing music, pulling up the weather or even reading news. But Alexa Skills are apps that give Alexa even more abilities, letting her speak to more devices even websites. 

Linked with no issues with an Insignia Roku TV. I didn't know the skill existed until i was messing with the settings on the TV and saw the fast start feature and read it. The skill turns the tv on, launches things etc. can't seem to navigate with it as far as on YouTube for example you can't tell it to scroll up or down and highlight etc. you can use volume control.
Amazon Alexa is based in the Amazon Web Services (AWS) public cloud. A developer can upload Alexa skill code to AWS Lambda functions to execute code that is triggered by voice interactions. AWS automatically manages the compute resources for Lambda. A developer can certify, publish and update skills, which are made available through the Alexa Skills Store.
Like all AI devices that use National Language Processing or NLP, Alexa does not understand all voices easily. But she learns to understand her people over time. She does, however, require people to speak in simple terms, with appropriate pauses, and use specific word orders. There are many times when she will say "I'm sorry, I don't know the answer to that question." More than likely, she doesn't recognize a word order or misunderstood the question.
Many Alexa Skills are tailored for news and information. Alexa's Flash Briefing, a quick update of top headlines, can be pulled from a preferred media source: Fox News, NPR, The Wall Street Journal, and The Daily Show are just a few options. Users can also check train or bus schedules, check for someplace to eat through Restaurant Finder, check the traffic, or find a select store's hours.

Once you’ve filled out the page, it’s time to make a listing or profile page for your flash briefing. This process is the same as with any Alexa skill: give your briefing a short description, a long one and a profile image to use. After that, submit your skill and begin recording your content! When you upload new content to your audio host, it will automatically push to your flash briefing via RSS.
Alexa Skills themselves are quite helpful. However, even with an updated Skills section in the Alexa app and the ability to add skills using only your voice, discovering new and useful skills is a less than desirable experience. So much so that Amazon actually created a skill called Skill Finder which, you guessed it, helps you discover new skills. Launch it by saying, "Alexa, open Skill Finder" or "Alexa, tell Skill Finder to give me the skill of the day."
You'll notice in the lists below that many Alexa skills are called by using trigger words like open, start, play and ask. While select skills require you to use specific terms, others consider them to be interchangeable and will work with some or all of these phrases. Over time you'll begin launching your favorite skills by the words you feel most comfortable using. Initially, though, it can be fun to play around with each.
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