You can make a Tardis in Minecraft with both Xbox and computer.
Xbox: Make a 2 block high tower of cobblestone slabs and put one on top. Then mine the two whole blocks and put doors around the space. Then put a ender portal or Portal inside.
Computer: Make the Tardis and instead of ender portal you put a command block under a block and a pressure plate on top. You put in the coordinates for where you want to go.And walk in.
Got to go! See you next time and follow minecraftandothervideogames.wordpress.com and dumcheese.