The ornamental design for a tvreceiver, as shown and described.
1. TV receiver
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Left
1.5 : Right
1.6 : Top
1.7 : Bottom
1.8 : Enlarged
1.9 : Enlarged
The evenly-spaced broken lines showing the panels, vent and circular button feature on the back of the TV receiver and rectangular features on bottom of TV receiver are for the purpose of illustrating portions of the article and form no part of the claimed design. The dot-dash broken line portions of the figures 1.8 and 1.9 are included to show partially enlarged views only and form no part of the claimed design.