Render a block in Drupal 7 anywhere in the page (eg. in a tpl.php file) with its title.

drupalRenderBlockWithTitle.php

<?php
/**
 * Render a block anywhere with its title.
 *
 * To render the block of the "ep_socialchannels" module with the
 * "social_channels" delta, call this function, like this:
 * @code
 * THEME_render_block('ep_socialchannels', 'social_channels');
 * @encode
 *
 * Take into account that this function hasn't been tested yet with blocks
 * generated by the Views module! Also, since the code calls the function
 * hook_block_list_alter() implementation of the block module, the block gets
 * checked for page, user role, and user-specific visibility settings, resulting
 * in removing the block if the visibility conditions are not met.
 *
 * @param string $module
 *   The machine name of the module which generates the block. Defaults to this
 *   module.
 * @param string $delta
 *   The delta of the block. Defaults to this module's block.
 *
 * @return string
 *   The HTML of the rendered block.
 */
function ep_render_block($module, $delta) {
  global $theme_key;
  $query = db_select('block', 'b');
  $result = $query
    ->fields('b')
    ->condition('b.theme', $theme_key)
    ->condition('b.module', $module)
    ->condition('b.delta', $delta)
    ->addTag('block_load')
    ->addTag('translatable')
    ->execute();
  $block_info = $result->fetchAllAssoc('bid');
  if (!$block_info) {
    return '';
  }
  drupal_alter('block_list', $block_info);
  $blocks = _block_render_blocks($block_info);
  $build = _block_get_renderable_array($blocks);
  return render($build);
}