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 view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a rear perspective view thereof;
FIG. 9 is another rear view thereof, in which a display part of the television receiver rotates to a first position to illustrate an alternate position; and,
FIG. 10 is a rear perspective view of the television receiver as shown in FIG. 9.
The broken lines show unclaimed subject matter and form no part of the claimed design.