I have been trying to display next and previous page on my wordpress's custom post type. But the links are not generating. What I'm doing wrong?

Here is my code:

```
<?php
    $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
    $video = array('post_type' => 'e_tv', 'posts_per_page' => 1,'order' => 'ASC', 'paged' => $paged);
    $tv_query = new WP_Query($video);
    while ($tv_query->have_posts()) : $tv_query->the_post();
    ?>
    <!--video1-->
    <section class="e_tv">
        <h4><?php the_title()?></h4>
        <?php the_content(); ?>
    </section>
    <!--/video1-->

        <?php
    endwhile;
    ?>
    <div class="e_sep"></div>

    <section class="e_nxtprev">
        <div class="e_next"><?php previous_posts_link('%link', 'PREVIOUS PAGE', $tv_query->max_num_pages) ?></div>
        <div class="e_prev"><?php next_posts_link('%link', 'NEXT PAGE', $tv_query->max_num_pages) ?></div>
    </section>

```

Your help is greatly appreciated!