The ornamental design for a televisionreceiver, as shown and described.
FIG. 1 is a perspective view of a television receiver showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is an enlarged view taken from the intersection of lines a-a, b-b, c-c and d-d seen in FIG. 4, showing the front-lower part of the television receiver which is consisted of transparent material.