The ornamental design for a televisionreceiver, as shown and described.
1. Television receiver
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Left
1.5 : Top
1.6 : Perspective view 2
1.7 : Front view 2
1.8 : Back view 2
1.9 : Left view 2
1.10 : Top view 2
The fine oblique lines on the drawings indicate the display portion of the television receiver; reproduction 1.1 is a perspective view of the television receiver in a folded state; reproductions 1.2 to 1.5 are front, back, left and top views of reproduction 1.1 where the right and bottom views are mirror images of the left and top views; reproduction 1.6 is a perspective view of the claimed design in an unfolded state; reproductions 1.7 to 1.10 are front, back, left and top views of reproduction 1.6 where the right and bottom views are mirror images of the left and top views.