The present invention discloses an over-current protection apparatus for high voltage, which connects the ceramic current-sensing element and polymer current-sensing element in series to form a novel over-current protection apparatus. According to various embodiments, an indication on the start of the inactive speech period is signalled to the decoder via a voice activity detection flag a predetermined number of frames before the DTX period will start, i. Providing light transmissive heat sink can double the heat conduction from the LED dies thereby increasing life, or efficiency or luminance or a balance of the three. Repeating programs may be divided into segments and an overlay may be used to allow a viewer to quickly and easily view a segment of interest.