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 tell side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a front view thereof showing the state that during operation, the lower-right part of this television receiver has been irregularly and brightly lit up.