Ever wonder how to best build your brand online? The Lab Rats' good friend Amber Mac guests on this episode of the show, where she passes on some key tips for those looking to make a mark in the world of social media. Included in the discussion: being consistent and authentic, as well as what you should do when someone decides to criticize you mercilessly. Check out the whole episode for all the tips, as well as for information on how you can win a free copy of Amber's new book, Power Friending!

So you've gone ahead and bought your iPad, and you've been playing around with it for a while. Sure, it's fun and there are a lot of great apps you can run on the device, but you may be wondering if there's more you can do with the iPad than what you've done so far -- it's the Lab Rats to the rescue! Andy and Sean show off some of their favorite intermediate-to-advanced tips for the iPad, including

using USB devices with the iPad

, saving web photos to your library and setting them as your wallpaper, accessing alternate characters using the on-screen keyboard, enabling autofill and much more!

If you have a stack of old videotapes gathering dust in the basement, pay attention: eventually, videotapes degrade to the point of unplayability, which means all your precious videotaped memories may disappear into eternity. In this episode of Lab Rats, Sean and Andy show you a way to convert those old videotapes into digital video files, using analogue-to-digital capture devices. Whether you use your old VCR with a capture card, or spring for ION's USB-connected VCR2PC, there's a way to get your old memories into the digital age, and the Lab Rats show you how.

Andy and Sean look ahead to the start of the school season and talk about what kind of computer you may want to get for the school year, if you're in the market for something new.

What is 3G?

What is 4G?

Come to thing of it, what is a G and how many of them do I really need? Andy and Sean explain the difference between the different types of 3G and 4G data networks, with the help of a bunch of melons.

If you're wondering about 3DTV's seemingly inexorable march toward your living room, the Lab Rats go straight to the source and ask the burning 3DTV questions. Andy and Sean chat with Brian Lang of Panasonic Canada about what you need to bring the world of 3D television to your very own living room.

3D is coming at you with 3DTVs and "3D Ready" TVs already appearing on big box store shelves. Andy and Sean travel to Panasonic Canada's headquarters to find out what all the fuss is about. The pair get a sneak peek at Panasonic's forthcoming 3D video camera and chat with Panasonic's Kevin McKay about what's involved in shooting 3D footage.

Andy and Sean camped out to get their hands on the

iPhone 4

, the best performing product at launch for Apple... at least to date. Find out what all the hype is about and whether it's worth buying into. The guys do a show-and-tell on some of the

new features in the iPhone 4

, like the Retina Display, multitasking, and more.

Sean and Andy take a look at iOS 4, the new mobile phone operating system from Apple, and explain some of the new features.

Think about it. You probably use a touch screen every single day. Whether it's the resistive sort requiring the use of a stylus or the capacitive sort where just your finger will do, touch screen technology has fundamentally changed the way we interact with our devices. Andy and Sean explain how touch-screen technology works, using Nutella, marshmallow spread, cranberry juice and bananas.