The present invention relates to a method of changing between a plurality N of distinct services, e.g. television channels, receivable on a receiving unit, such as a mobile phone/cellular phone, a personal digital assistant (PDA), a handheld television unit, or similar devices. The receiving unit is adapted to receive the plurality of services in a time slicing mode with services being arranged in a certain time slice sequence. The receiving unit is capable of receiving a first service (S1). When “zapping” from the first service to a second service, the second service (S4) being chosen is the currently next service in time within the time slice sequence so as to minimize the time (t2) between service changes. Thereby, a fast method of changing between services is provided in a simplified manner, the speed of change reaching the theoretical maximum when using time slicing.