I use an unlocked Nokia Lumia 920 (Windows Phone 8) with Koodo Prepaid. I am currently paying for a 15$ base plan that includes text message and picture. Does that mean that I cannot send videos via MMS? If I can, are there limitations to send videos via MMS?
You can send videos via mms. There is a limitation on the size but I'm not certain what it is offhand. Many smartphones have an option under the camera settings to limit size for mms, which will automatically keep the size down.