There are many ways to introduce a video in Engpsh, but some options could include:
"Hello and welcome to [video title]!"
"In this video, we'll be discussing [topic of video]."
"Today, we're going to explore [subject of video]."
"Get ready to learn about [topic of video] in this video."
"We're excited to share [topic of video] with you in this video."
Remember to speak clearly and enunciate your words to make it easy for your viewers to understand you. Good luck with your video!