Abstract: A video cassette recorder comprises a pair of pole base assemblies each of which includes a guide roller for guiding a running magnetic tape to help maintain a proper contact with a head drum having at least one video head, a base and a post for supporting the guide roller, and a lever for selectively vertically moving the posts depending on operation modes. The post is mounted to the base and movable vertically, and the guide roller is rotatably fixed to top of the post. The lever is provided with a pair of stepped portions, is mounted under a deck, and horizontally moves depending on the operation modes so that the stepped portions selectively contact and move the posts by a desired height to tilt the tape between the guide rollers at an angle, thereby allowing the video head of the head drum to correctly read tracks recorded on the magnetic tape.